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On Sale
These Holley vacuum secondary spring kits are designed to fine-tune your carburetor. They have an effect on initial operating and full upper rpm.
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$23.75
$21.38
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Holley vacuum secondary diaphragms will replace your existing worn-out diaphragms. They are made from a high performance rubber material and will fit most Holley carburetors with vacuum secondaries.
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$18.99
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$63.59
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$57.25
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Holley offers vacuum secondary carburetor accessories that can be used as replacements or for use in upgrading your present carburetor. From diaphragms to spring kits, covers to quick-change kits and more, Holley has the part accessories you need to keep your carburetor at peak performance.
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$38.17
$34.35
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These Summit Racing™ vacuum secondary upgrade Pro Packs can help you modify your carburetor's initial operating and full end rpm. They include an assortment of vacuum secondary springs, so you can choose which is best for your engine combination. They also include a quick-change housing and cover that allow you to make fast changes in no time at all. Optimize your engine rpm and tune-in your carburetor with one of these Summit Racing™ vacuum secondary upgrade Pro Packs.
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$61.92
$55.73
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The Street Warrior uses the latest technology and quality products that Holley is known for. Constructed from aluminum, the Street Warrior is a great replacement carburetor for your daily driver or your weekend cruiser. Perfect replacement carburetor when your original style is no longer available.
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Holley's Street Avenger 4-barrel carbs offer trouble-free operation in an easy-to-install package. They're calibrated to deliver the performance that you need, without the tuning headaches involved with other carbs. And all of this comes with a silver or color-anodized finish that'll look great under your hood. Street Avenger carburetors are available in different sizes and cfm ranges, with manual or electric choke, for a variety of engine applications. Features include: * Tunable metering system * Fuel filters in the primary and secondary fuel bowls * Center-hung floats * External float adjustments * Electric or manual choke * Emissions accessory ports * Adjustable secondaries * Power-valve saver * Dual-feed conversion fuel line
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$628.95
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Replace your old carburetor with original Holley performance 4160 carburetors. Budget-minded enthusiasts, like you, will be rewarded with maximum performance from your stock or mildly-modified engine. These Holley 4160 carburetors are easier to tune than full race carburetors with temperamental secondary metering blocks and dual pumps. Plus, they're available in your choice of universal or direct-fit OE replacement versions with all emission provisions. Bolt-on installation and improved performance; no wonder when car guys think of carburetors, they think of Holley 4160 carburetors!
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A leader in fuel systems, Holley offers less weight with more performance in their 4160 aluminum street carburetors. High performance enthusiasts are always looking for ways to make their street machines faster. These aluminum carburetors can equate to 5 lbs. of weight savings compared to their zinc counterparts! Less weight, move faster and possibly save some dough at the fuel pump--what could be better? Holley 4160 aluminum street carburetors are offered in electric chokes for easy warm-ups or manual chokes allowing you to control the warm up. Vacuum secondaries, and adjustable floats make these aluminum carburetors bolt-on performance upgrades for a wide variety of vehicles. Plus, they will remain bright and shiny and can be hand-polished for a show car shine that will definitely brighten up your engine compartment! Lightweight performance and heavyweight looks; a dynamic duo for under your hood--Holley 4160 aluminum street carburetors.
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On Sale
Holley aluminum Street Avenger 4-barrel carbs give you trouble-free performance in a good-looking, easy-to-install package. The attractive aluminum finish not only gives a long lasting shine but also offers weight savings as well. They're calibrated to give you the performance you need, without the tuning headaches involved with other carbs. Features include a tunable metering system, fuel filters in the primary and secondary fuel bowls, center-hung floats, external float adjustment, choice of electric or manual choke, emissions accessory ports, adjustable secondaries, a power-valve saver, dual-feed conversion fuel line, and more. Street Avenger Carburetors also feature a four corner idle system that allows for superior idle control by utilizing primary and secondary idle adjustments, increased idle control on engines with higher performance cam shafts, and vastly improves throttle response. All of this comes with a polished finish that looks as good as it performs! They're available in many different sizes for a variety of engines.
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Holley aluminum Street HP carburetors make tire-smoking performance affordable! They utilize the best features from Holley's Race Bred models but are tamed for street and light competition use, weighing up to 40 percent less and are even easier on your wallet. Each Street HP carburetor features an aluminum contoured main body design with a tumble polished shiny finish and screw-in air bleeds for precision tuning capabilities. The metering system includes a timed spark port for a vacuum advance distributor and is calibrated for a hot street/strip engine setup for outstanding throttle response, drivability, and maximum performance. A street HP base plate is used so there is plenty of vacuum ports for power brakes, PCV, etc.
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Holley Ultra Street Avenger carburetors take your ride from street to strip with amazing out-of-the-box performance. They feature ultra-light aluminum construction for less weight with billet metering blocks and base plates for ultra strength versus cast pieces. With glass fuel level windows in the bowls, vacuum secondaries, and precise fuel metering, these Ultra Street Avenger carburetors offer you ultra-easy, no-trouble adjustments. Amazing performance under the hood deserves an amazing look as well, and the Holley Ultra Street Avenger carburetors, with their shiny tumble-polished finish, along with anodized metering blocks, base plates, and hardware, are the ultimate in cool. Dare to go beyond the limits--power your machine with Holley Ultra carburetors.
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$808.95
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Holley Marine Avenger carburetors feature all-aluminum construction with a gray hardcoat anodized finish for corrosion resistance and tough style. They're J1223 marine certified, have PTFE coated throttle shafts, and come available in different sizes to match your boat's needs. Holley recognizes and calibrates for the unique loads that boats endure and uses 4-corner adjustments through dual metering blocks. Quickly get to your favorite fishing hole with Holley Marine Avenger carburetors.
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$673.95
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Holley Terminator X MAX engine management systems let you take control of your domestic V8 engine. They give you complete charge of your engine and self-learning fuel strategies, along with the proven, race-winning technology of Holley EFI—all at a budget-friendly price! Every MPFI Terminator X MAX features real-time fuel learn, high-impedance injector drivers, an integrated one-bar MAP sensor—and four programmable inputs and outputs, ideal for electric fans, boost control solenoids, progressive nitrous control, and much more. Also, Holley offers the X MAX systems with either or both drive-by-wire (DBW) throttle body control or transmission control. All kits come fully loaded with base maps for common domestic V8 engine combinations to get you out of the garage and onto the road or track fast. Order the model recommended for your vehicle application. Features include: * Holley EFI industry-leading, easy-to-use software suite allows full laptop access for advanced users * Real-time fuel map learn—takes the guesswork out of tuning your base fuel table * High-impedance injector drivers will safely power most standard injectors and Holley EFI injectors (will not control low-impedance injectors) * Bosch LSU 4.9 wideband relays AFR information to the ECU for accurate reading and precise tuning control * On-board one-bar MAP sensor is perfect for N/A or nitrous engine combos * MAP sensor vacuum hose adapters * 4 inputs: 12 V, ground, 5 V, and frequency * 4 outputs: Ground, PWM, and for accessories * Boost control: boost vs. time, boost vs. gear, boost vs. rpm, boost vs. speed, and boost safeties * Nitrous control: single channel of wet or dry, progressive or non-progressive, rich/lean safeties, and target closed loop AFR; adjustable through touch screen * Advanced tables can be used for any custom tables * On-board diagnostic LEDs allow you to identify any critical engine issues at a glance * The compact ECU size allows you to mount it virtually anywhere. Remember, diagnostic LEDs must face up! * Plug-and-play compatible with more Holley EFI accessories * Available with or without a 3.5 in. touch screen LCD hand-held with easy-to-use calibration wizard; allows you to quickly build a base tune for most V8 engines, as well as tuning and gauge display functions
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$1,609.95
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$2,248.95
On Sale
Holley Terminator X engine management systems let you take control of your domestic V8 engine. These kits give you complete charge of your engine and self-learning fuel strategies, along with the proven, race-winning technology of Holley EFI—all at a budget-friendly price! Every MPFI Terminator X features real-time fuel learn, high impedance injector drivers, an integrated one-bar MAP sensor—and four programmable inputs and outputs, ideal for electric fans, boost control solenoids, progressive nitrous control, and much more. All systems come fully loaded with base maps for common engine combinations to get you out of the garage and onto the road or track fast. Features include: * Holley EFI industry-leading, easy-to-use software suite allows full laptop access for advanced users * Real-time fuel map learn—takes the guesswork out of tuning your base fuel table * High-impedance injector drivers will safely power most standard injectors and Holley EFI injectors. (Will not control low-impedance injectors) * Bosch LSU 4.9 wideband relays AFR information to the ECU for accurate reading and precise tuning control * On-board one-bar MAP sensor is perfect for N/A or nitrous engine combos * MAP sensor vacuum hose adapters * 4 inputs: 12 V, ground, 5 V, and frequency * 4 outputs: Ground, PWM for accessories * Boost control: boost vs. time, boost vs. gear, boost vs. rpm, boost vs. speed, and boost safeties * Nitrous control: single channel of wet or dry, progressive or non-progressive, rich/lean safeties, and target closed loop AFR; adjustable through touch screen * Advanced tables: 4 x 1D tables, 1 x 1D per gear table, 4 x 2D tables, 1 x 2D per gear table * On-board diagnostic LEDs allow you to identify any critical engine issues at a glance * The compact ECU size allows you to mount it virtually anywhere. Remember, diagnostic LEDs must face up! * Plug-and-play compatible with more Holley EFI accessories * Available with or without a 3.5 in. touch screen LCD hand-held with easy-to-use calibration wizard; allows you to quickly build a base tune for most domestic V8 engines, as well as tuning and gauge display functions (not available with every kit)
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$1,349.95
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$1,899.95
$1,213.95
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$1,708.95
On Sale
Holley's Street Avenger Model 2300 carburetors offer trouble-free performance in a good-looking, easy-to-install package. They're calibrated to give you the performance that you need, without the tuning headaches involved with other carbs. And all of this comes with a silver finish that looks as good as it performs! The Street Avenger is available in many different sizes for a variety of engines. Features include: * Gen IV no-trouble power valve * Built-in fuel filter * Center-hung float * External float adjustments * Electric choke * Two vacuum ports (one times spark and one PCV)
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$599.95
$520.95
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$538.95
On Sale
Upgrade to Holley EFI Standalone Digital Pro Dash kits and get the facts on your engine! They offer two versions--both are full of features that support most any users, install almost anywhere, and just like traditional gauges install in almost anything. Holley's 6.86 in version actually measures 3.5 in. tall x 7.6 in. wide, is easily mounted in a console/dashboard, off a roll cage, or on a steering column, and includes a 10 LED shift light. The larger 12.3 in. version is for hard-core enthusiasts who want the ultimate display device, and measures 11.5 in. wide x 4.25 in. tall. Holley EFI Standalone Pro Dash units feature: * Standalone digital dashes--no ECU or fuel injection required * High resolution, state-of-the-art, multi-gauge touch screen display with fully configurable layouts: -- Full color, capacitive touch screen with auto dimming for crystal clear data--day or night -- Quickly swipe between multiple active screens (tune, warm-up, race, drive, etc.) -- Virtual switch panel eliminates the need for external toggle switches -- 16 default background skins pre-loaded with unlimited options for importing custom layouts -- Built-in GPS with speed, odometer and trip odometer function (external antenna included) -- Rendered analog (dials/needles) and digital gauge styles available -- Integrated datalogger -- Rugged, water-resistant case constructed of cast aluminum for long life and durability * Plug-and-play features are pre-configured in the harness and include dash layouts/screens for: -- Oil and fuel pressure, coolant and air temperature (utilizes plug-and-play Holley sensors, not included) -- Turn signals, high beam, fuel level, engine vacuum/boost * Additional input and output functionality: -- 13 multi-configurable inputs -- 4 ground switched outputs -- 4 speed channels (two dedicated) for rpm, driveshaft speed, or any other Hall effect speed input -- User definable channel alarms and warnings * Communications/harness: -- 4-pin wiring harness contains power, ground, and CANbus connections -- Holley EFI CANbus connection for expanded capability with Holley EFI systems -- Expandable storage via USB * Integrated datalogger: -- Internal log memory of 1GB (expandable up to 32GB with addition of micro-SD card) -- External logging to USB flash drive is also available for easy file management -- On-screen datalog playback allows you to review vital run information right on the dash -- Full analysis via laptop is available. Simply download the file to a USB drive and view with the free datalog viewer at Holley.com * Flexible mounting options: Surface or flush mounting—high-quality hardware included * Simple setup and programming: USB keyboard and mouse functionality * Fully upgradeable * Both dash versions include harness/cables, mounting hardware, USB memory stick, and CAN terminator * GPS antenna * Sensors not included
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$2,249.95
$1,303.95
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On Sale
Holley Aluminum Street HP carburetors deliver weight savings, lasting good looks, and affordable tire-smoking performance! Utilizing the best features of their race-bred HP and the Double Pumper, Holley offers these amazing street/strip carburetors that weigh 40 percent less—and take less out of your wallet! Street HP carburetors display an aluminum contoured main body design with a tumble-polished, shiny finish, plus screw-in air bleeds for precision tuning capabilities. The metering system includes a timed spark port for a vacuum advance distributor, calibrated for a hot street/strip engine setup with outstanding throttle response, drivability, and maximum performance. Finally, they are 100 percent wet-flow tested to ensure that they arrive ready-to-run. More Holley Aluminum Street HP carburetor features: * Contoured Venturi inlet offers balanced airflow for increased horsepower * Four-corner idle for precise idle control * Mechanical secondaries for impressive tire-turning performance * Dual accelerator pumps for additional fuel under initial acceleration * Dual feed fuel inlets for constant, high-volume fuel delivery * Available in 650, 750, 850, and 950 cfm versions * Street HP base plate is used, so there are plenty of vacuum ports for power brakes, PCV, etc. * Intended for lightweight vehicles with manual transmission or automatics with a high stall and low gearing
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$749.95
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$673.95
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On Sale
Holley Sniper EFI Stealth 4150 fuel injection systems feature four 100 lb.-hr. fuel injectors capable of supporting up to 650 hp naturally aspirated. The Sniper Stealth 4150 ECU is capable of fuel map self-learning and ignition timing control--improving idle stability, drivability, and wide-open throttle horsepower! These systems also include transmission kickdown provisions for GM TH350/400, 200R4/700R4 and Ford C4/C6 applications. The 4150 is available individually or in a complete Master Kit (see contents listed below). ALL Sniper EFI Stealth 4150 systems feature: * Bolt-on 4150 flange carburetor replacement * Throttle body mounted ECU; no extra boxes to mount * Supports up to 650 hp with four 100 lb.-hr. injectors * All of the wiring exits below the rear fuel injector cover—for a completely stealth installation * Timed spark part for vacuum advanced distributors located under the front fuel bowl—for easy access to the distributor * Air entry is machined to fit most stock-style air cleaners with air cleaner locator provisions * Only four wiring connections required (battery +, battery -, switched ignition, and RPM) * External fuel pressure regulator required, set to a base pressure of 58.5 psi, such as 12-886 * Integrated ignition timing control * High-resolution full-color touch screen for initial setup, tuning, and gauge displays * Simple calibration wizard (answer a few questions about your engine and it creates the base map, then starts tuning on its own); NO laptop required * Self-tuning ECU means you don't have to be a computer/tuning wiz to have EFI * The included genuine Bosch LSU 4.9 wideband oxygen sensor provides real-time fuel map learn * OEM-style TPS/IAC and fuel pressure regulator, for years of dependable service * Included clamp-on oxygen sensor kit for 2.25 in. exhaust ensures a leak-free oxygen sensor installation, with stainless steel T-bolt clamps and a stainless steel (weldable) oxygen sensor flange * Available in three finishes: shiny, ceramic black, and classic gold MASTER KITS also include complete fuel system with an external fuel pressure regulator preset to 58.5 psi, 20 ft. of 3/8 in. Vapor Guard fuel hose, fuel pump, filters, necessary hardware, and bulkhead fitting to return fuel into the tank.
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Holley universal 4-barrel 1000 cfm 4150 flange throttle bodies feature integrated throttle position, idle air control and intake air temperature sensors to work with your aftermarket multi-port EFI system. Their standard square bore mounting pattern is designed to fit perfectly on most intake manifolds and the stout 1,000 cfm can handle high horsepower with no problem. These units have a CFD computer-designed modeled air entry area--so maximum velocity and accelerated air speed are delivered to the engine. The high-flow idle air control passages are great for large cu. in. to aid in idle stability. Holley universal 4-barrel 1000 cfm 4150 flange throttle bodies have an integrated GM 700R4 transmission kickdown location, as well as a kickdown lever for use with Ford transmissions. They feature all necessary vacuum ports, one timed spark, two 3/8 in. and two 3/16 in. full manifold vacuum ports. The 1.750 in. diameter throttle plates are mounted to PTFE-coated throttle shafts for high flow and smooth feel. Their high-quality die cast aluminum construction provides excellent strength while reducing weight, and they're offered in your choice of tumble polish or hard gray anodized finishes.
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$538.95
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Holley Ultra Double Pumper Carburetors feature all aluminum construction and are equipped with metering blocks and a base plate made from 6061-T6 billet aluminum. Three different anodized color options (red, blue, or black) allow for a personalized look while maintaining the ultra high strength and durability you get from billet. They weigh in at approximately 5 lbs. less than a comparable zinc carburetor. Holley Ultra Double Pumper Carburetors have an enhanced fuel curve for optimum performance, with many more features such as 4 corner idle for precise idle control, mechanical secondaries for great performance, clear fuel level sight plugs for easy, no mess fuel level adjustments, Ford automatic transmission kickdown for use on popular Ford transmissions, four vacuum ports for all necessary vacuum accessories, and for the first time on a Double Pumper, factory pre-set electric choke for easy, fast cold start-ups. The clean, polished look coupled with red, blue, or black metering blocks and throttle body will certainly set your ride apart whether you are at the show or track.
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By popular demand, Holley is expanding the draw-thru supercharger carburetor line to now include the 4150 XP Series. Like the existing HP line, these carbs are available in 600, 750, and 950 cfm flow rates—and standard polished with black accents. The feature-laden XPs include a contoured venturi inlet for balanced airflow, screw-in air bleeds for precision-tuning capabilities, high-flow billet metering blocks, billet base plate, and Dominator-style fuel bowls which allow plumbing from either side. Supercharger XP carburetors also have a unique capability that allows their power valves to reference the intake manifold vacuum below the supercharger. This enables the power valve to operate as it should, based off intake manifold vacuum. A power valve provides further enrichment to the main metering system under load (low vacuum) conditions. Holley XP carburetors are the standard for square bore race carburetors. Race-Ready out of the box! Order the model with options preferred for your vehicle. Product details: * Tumble polished shiny finish for good looks * Application-specific blower calibration * Contoured venturi inlet offers balanced airflow for increased horsepower * Screw-in air bleeds for precision-tuning capabilities * Dual accelerator pumps for additional fuel under initial acceleration * Dual feed fuel inlets for constant high-volume fuel delivery * 4-corner idle allows you to precisely control your idle system * Mechanical secondaries for perfect off-the-line launches * Boost referenced power valve for proper enrichment under acceleration * Throttle lever cut off for clearance on a sideways application * 100 percent wet-flow tested by Holley technicians to assure it arrives ready to run
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The all new Aluminum Street HP's weigh up to 40% less and are even easier on your wallet. Holley is proud to introduce the all new Aluminum Street HP™. They utilize the best features from Holley's Race Bred 4150 HP™ carbs, but are tamed for street and light competition use. The Street HP features an aluminum contoured main body design taken from the race winning 4150 HP™ and has a tumble polished shiny finish and screw in air bleeds for precision tuning capabilities. The metering system includes a timed spark port for a vacuum advance distributor and is calibrated for a hot street/strip engine setup for outstanding throttle response, drivability and maximum performance. A street HP base plate is used so there are plenty of vacuum ports for power brakes, PCV, etc. The Aluminum Street HP takes all the great features from the race bred HP and the Double Pumper and combines them into the perfect street/strip carburetor.
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$799.95
$718.95
On Sale
Holley EFI LS single plane mid-rise intake manifolds are great for your higher horsepower engine. Featuring cast aluminum construction, these manifolds are also great for centrifugal blower, turbocharged, or NOS mild power adder applications. The efficient casting design is lightweight--11.5 lbs.--with consistent wall thickness and strong mounting flanges. The optimized runner layout and constant cross sectional area offer a broad torque curve, with the best vehicle performance from 2,500 to 7,000 rpm. The mid-rise design offers minimum carb mounting flange height--without sacrificing power--and is another plus for vehicles with minimum hood modifications. Holley EFI LS single plane mid-rise intake manifolds include zinc-plated hex head cap mounting bolts and washers, pipe plugs to block manifold vacuum and MAP sensor ports, and Viton® O-ring cylinder head mounting flange gaskets for an OEM-style seal.
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$479.95
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$274.95
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$493.95
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Holley bypass fuel pressure regulator kits are part of a complete line of fuel system products from Holley. Offering several different kits, each features a billet or diecast aluminum regulator with an adjustable psi for precise fuel pressure changes and they are finished for corrosion resistance and good looks. The regulators are fitted with a 1/8 in. NPT gauge port and include an Earl's fuel pressure gauge, three adapter fittings, a barbed fitting for the vacuum port, a mounting bracket, and all necessary hardware. Choose the kit to best fit your project's needs and performance.
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$162.95
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$146.65
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$314.95
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