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Air/Fuel Delivery Parts for Carbureted & Fuel Injected Engines
Cram the right air/fuel ratio into your engine and you create incredible horsepower. Summit Racing has everything you need to find that mix, starting with carburetors...
Cram the right air/fuel ratio into your engine and you create incredible horsepower. Summit Racing has everything you need to find that mix, starting with carburetors for street to strip, plus intake manifolds ranging from stock-height replacements to hood-busting tunnel rams. If you’e ready to advance to fuel injection, we’ve got you covered with injectors, manifolds, fuel rails, sensors, and complete performance EFI conversion kits. We’ve also got cold air intakes, fuel pumps, fuel filters, superchargers, turbochargers, nitrous kits, methanol injection kits, hood scoops, and air filters—there’s no excuse for starving...
Cram the right air/fuel ratio into your engine and you create incredible horsepower. Summit Racing has everything you need to find that mix, starting with carburetors for street to strip, plus intake manifolds ranging from stock-height replacements to hood-busting tunnel rams. If you’e ready to advance to fuel injection, we’ve got you covered with injectors, manifolds, fuel rails, sensors, and complete performance EFI conversion kits. We’ve also got cold air intakes, fuel pumps, fuel filters, superchargers, turbochargers, nitrous kits, methanol injection kits, hood scoops, and air filters—there’s no excuse for starving that horsepower-hungry beast now!
Showing In Stock Items. Show All 30 Items.
Summit Racing™ Idle Feed Restriction Tuning Kits
These Summit Racing™ idle feed restriction tuning kits are designed to fix low-end drivability issues, such as black smoke, poor fuel economy, and surging at idle. They include four each of 0.043 in., 0.046 in., 0.049 in., 0.052 in., 0.055 in., and 0.059 in. idle feed restrictions. These Summit Racing™ idle feed restriction tuning kits also include two nozzle bar gaskets and a detailed instruction sheet for easy installation.
( 14 )
$50.99
Quick Fuel Carburetor Idle Feed Restrictors
These Quick Fuel carburetor idle feed restrictors are designed to control the fuel side of the idle and off-idle system. They are manufactured from durable brass and install easily into the Quick Fuel billet aluminum metering blocks. Available in different sizes, Quick Fuel carburetor idle feed restrictors will help you fine-tune your carburetor to your specific engine combination.
( 13 )
$7.12
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$27.30
Willy's Carburetor & Dyno Shop Restrictor Plates
Willy's 1 in. adjustable restrictor plates allow the racer to dial custom torque and horsepower curves to specific track conditions. Willy's restrictor plate is fully O-ringed and is made from CNC-machined billet aluminum. This plate has 18 turns of adjustment, ranging from 1.750 in. to 1.000 in.
( 2 )
$433.99
Holley Emulsion Jets
Holley emulsion jets are just what you need to fine-tune your carburetor for street or race. Threaded for easy installation and removal, Holley jets are manufactured to high tolerances for consistency.
Not Yet Reviewed
$18.66
Holley Emulsion Bleed Kits
Holley emulsion bleed kits are designed to fine tuning of your Holley HP Series 390 cfm 4-barrel carburetor. They include a plastic case with labeled compartments for easy identification. The emulsion bleed kits include the following sizes: * 10 blank emulsion jets to drill your own size * 10 emulsion jets size 0.020 in. * 10 emulsion jets size 0.031 in. * 10 emulsion jets size 0.040 in. * 10 emulsion jets size 0.046 in. * 10 emulsion jets size 0.052 in.
( 2 )
$204.95
AED Power Valve Restrictors
These tiny little items can make a big difference in the way that your carburetor runs. AED blank power valve restrictors are designed for the quick fine-tuning of your power valve. AED has the replacement components that you need for your carburetor.
( 4 )
$25.79
Allstar Performance Carburetor Restrictor Plate Inserts
Allstar Performance carburetor restrictor plate inserts are designed for use with Allstar Performance governor 4-hole carburetor spacers. They are designed to restrict the airflow and fuel to help reduce power and wheel speed for maximum traction. The inserts are manufactured from durable aluminum and come in different inside diameters to help control your wheel speed. Allstar Performance carburetor restrictor plate inserts are available either 1/2 in. or 1 in. tall to fit your Allstar Performance governor spacer height.
( 1 )
$38.99
Allstar Performance Full Throttle Non-Restrictor Inserts
Allstar Performance full throttle non-restrictor aluminum inserts are used in place of restricting inserts, allowing full throttle operation without restriction. This is common practice when qualifying or when track conditions allow for more power. Allstar insert design offers a smoother transition over simply removing the restrictor inserts. .
Not Yet Reviewed
$38.99
AED Power Valve Restrictor Kits
For the quick fine-tuning of your power valve channel, AED offers these power valve restrictor kits. They offer precise, custom circuit enrichment and timing. These restrictor kits include a drill bit, tap, Allen wrench, and eight blank restrictors to improve your carburetor's performance.
( 1 )
$42.99
Allstar Performance Adjustable Base Plates
Allstar Performance adjustable base plates are 4-hole aluminum spacers with replaceable tapered inserts (sold separately). The plates are available in two thicknesses, and the different sizes of inserts can be quickly changed after the carb is removed. They will assist in governing the restriction of air/fuel entry and can help to slightly reduce power-preventing wheel spin.
( 2 )
$75.99
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$76.99
Vibrant Performance Oil Restrictor Fitting Kits
Vibrant Performance oil restrictor fitting kits are effective in controlling the flow. Properly limiting the oil flow to your turbo can minimize potential damage to your oil seals. The kits include a PTFE-lined stainless steel fitting with brass or stainless steel threaded jets, plus an Allen key. Setting the right oil flow to your turbo is easy with Vibrant Performance oil restrictor fitting kits.
( 14 )
$25.50
On Sale
Steeda Cold Air Intake Restrictors
Steeda cold air intake restrictors allow you to add horsepower and torque to your Mustang, while maintaining your factory tune. They'll give you increased power for your daily driving needs with regular gas. And, since they can be easily removed or installed, you can use them at the track to run performance tunes, with no computer flash required. Your car will still produce up to 10 hp and 10 ft.-lbs. of torque to the rear tires with 87 octane fuel. Check applications for compatibility.
Not Yet Reviewed
$94.95
$84.95
AED Billet Metering Blocks
AED manufactures a complete line of billet CNC metering blocks in-house to provide the ultimate in fuel curve tuning and adjustability. They offer standard billet blocks with fixed-orifice sizing (idle fuel and power valve restriction channels are adjustable) for all emulsion circuits. Versions for gas, alcohol, and E85 setups are available. Get a knockout baseline tune-up right out of the box with the AED billet metering blocks best suited for your application!
( 11 )
$127.99
Edelbrock Victor Jr. Intake Manifolds
Low-profile, single-plane Edelbrock Victor Jr. intake manifolds are very versatile and can be used for drag racing and Oval Track competition, as well as for street applications. Power bands range from 3,500 to 7,000 rpm, on up to 4,500 to 8,000 rpm. There are applications for small block and big block engines, as well as for 2-barrel and 4-barrel carburetors. Some manifolds accept standard restrictor plates and carb adapters.
( 62 )
$425.95
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$801.95
On Sale
Holley Sportsman Model 4500 Dominator Carburetors
Holley Sportsman Model 4500 Dominator carburetors feature the patent pending new Holley Gen 3 main body, which is 5/16 in. taller than the previous generation! This new height allows for larger radius air entries to deliver smoother flow—which equates to improved throttle response and consistency. An extended air cleaner flange is incorporated for easy air scoop attachment when using the available air scoop adapter. Other features include all-aluminum construction, tunable billet metering blocks, throttle position sensor mounting points, and knurled (hand adjustable) curb idle screws. Each calibration has been dyno and track tested to deliver proven performance! Key features of the Holley Sportsman Model 4500 Dominator carburetor: * All-aluminum construction saves 3.8 lbs. over original models * Shiny with billet aluminum metering block and black hardware * Designed for use on Drag racers, Pro Street, or any high-horsepower engines * Calibrations optimized for today's race engines and new fuels * Fully machined from venturi throat to throttle bore for predictable and repeatable performance * Annular boosters deliver excellent signal and throttle response * Screw-in air bleeds offer precise tuning capabilities * Metering blocks feature improved durability, true gasket sealing, and adjustability (power valve channel restrictors, intermediate restrictors, and idle feed restrictors) * Dual 50cc accelerator pumps provide the perfect amount of fuel from idle to full throttle * 4-corner idle allows you to precisely control your idle system * Clear sight windows on fuel inlet side of bowls for easy and safe fuel level adjustments * Notched float and jet extension are installed * 5/8-18 in. inlet threads offer a large variety of plumbing options (uses standard 4500 fuel inlet spacing) * Factory-ready TPS mounting points for use with data acquisition systems * Knurled primary and secondary curb idle screws allow for easy idle adjustment without the use of tools * Contoured hex head squirter screws for streamlined airflow * Progressive secondary link installed for perfect off-the-line launches; no linkage parts under the carburetor (1:1 wire link included in kit) * 100 percent wet-flow tested by Holley technicians to assure carb arrives ready to run * Compatible with the Gen 3 Dominator 4-hole billet spacer
( 11 )
$1,299.95
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$1,349.95
$1,168.95
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$1,213.95
On Sale
Holley Gen 3 Ultra Dominator Carburetors
Holley Gen 3 Ultra Dominator carburetors feature a brand new main body, brand new state-of-the-art calibrations, high-volume HP fuel bowls, and sizes up to 1,475 cfm! The metering blocks are fully adjustable (emulsion bleeds, power valve channel restrictors, and idle feed restrictors). These carburetors include redesigned Holley HP fuel bowls for racing. Internal baffling helps to control fuel slosh and minimize float level fluctuations in hard launching or cornering situations. The HP fuel bowls also have material added in key areas (the needle and seat, fuel inlet, and sight window areas) for added strength in demanding race environments and can be plumbed from either side. Some of the many Holley Gen 3 Ultra Dominator carb features include: * Main body 5/16 in. taller than the previous generation * Designed for larger radius air entries optimized using computational fluid dynamics (CFD) software to deliver smoother flow into fully machined, big-bore Venturi * Improved 6061-T6 billet aluminum metering blocks offering improved durability, true gasket sealing (sealing surface integrity), and brightly dipped anodizing for good looks and corrosion protection * Power valve channel restrictors are now machined lower in the metering blocks for improved fuel delivery to the power valve circuit * Accelerator pump channel internally drilled, eliminating the need for an external plug, * Excess material removed for increased fuel capacity * Snap-in-place bowl vent whistle makes removal and/or replacement easier * 20 percent more fuel capacity vs. traditional V-bowl, eliminating fuel starvation and providing consistent air/fuel ratios * Fuel shelf is positioned below the needle and seat to minimize fuel aeration and promote more consistent metering * Fuel trough designed into the floor of the bowl to route fuel flow directly to the jets and assist in keeping them covered by fuel * Clear sight windows on both sides of the bowls for easy and safe fuel level adjustments * Built-in drain plug in the front center of the bowl provides easy access to empty the bowl (contoured entry provides smooth fuel flow directly to the needle and seat) * Designed for use on drag race, Pro Street, or any high-horsepower engines * All-aluminum construction saves 3.8 lbs. over original models (28 percent weight savings) * Dual 50cc accelerator pumps
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$1,999.95
$1,393.95
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$1,798.95
On Sale
Holley Track Warrior Carburetors
Push your racing performance to the next level with Holley Track Warrior carburetors. The aluminum contoured main body design weighs less while adding horsepower and torque. These carbs have screw-in air bleeds for precision tuning capabilities, billet metering blocks, a billet base plate, adjustable secondary linkage, and knurled (hand-adjustable) curb idle screws. Features of Holley Track Warrior carbs include: * Aluminum construction for weight savings and long-lasting good looks * Color options include purple or black * Optimized race calibrations for outstanding throttle response * Contoured Venturi inlet offers balanced airflow for increased horsepower * Four-corner idle for precise idle control * Mechanical secondaries for remarkable tire-turning performance * Billet metering blocks for improved durability (compared to cast blocks) * True gasket sealing and fully adjustable (emulsion bleeds, power valve channel restrictor, and idle feed restrictors.) * Available in 650, 750, and 850 cfm versions * For lightweight vehicles with manual transmissions or automatics with a high stall and low gearing * 100 percent wet-flow tested by Holley technicians to ensure on-arrival performance
( 31 )
$849.95
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$972.95
$763.95
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$874.95
On Sale
Quick Fuel E85 Billet Metering Block Conversion Kits
Bring your carburetor into the new generation by going green. These Quick Fuel E85 billet metering block conversion kits feature standard calibration, screw-in idle feed restrictors, no secondary power valve provision, and a 4-mixture idle screw setup. The metering blocks are CNC-machined from billet aluminum and green anodized for protection. Specifically designed for use with E85 fuels, these Quick Fuel E85 billet metering block conversion kits will give your carburetor the adjustability you've been looking for, all while protecting the environment and going green.
( 8 )
$255.95
$230.35
Quick Fuel Double Pumper Billet Metering Block Conversion Kits
Quick Fuel Double Pumper billet metering block conversion kits feature standard calibration, screw-in idle feed restrictors, a timed port vacuum provision (primary side), no secondary power valve provision, and a 4-mixture idle screw setup. The metering block is CNC-machined from billet aluminum and red-anodized for protection.
( 8 )
$221.95
Garrett GT30/35 and GTX30/35 Turbo Installation Kits
Garrett Performance offers turbo installation kits for a variety of models, including Turboworx GT30/35 and GTX30/35. They are available to fit Garrett V-Band/V-Band, T3 Divided/V-Band, or T4 Open/V-Band turbine housings. The kits include drain line with fittings, -4 AN x 3 ft. stainless steel feed line, inlet gasket and outlet flange, -4 oil restrictor fitting, and .035 in. and water jacket fittings. (See Notes above for specific part details.) Order the installation kit recommended for your turbocharger application.
Not Yet Reviewed
$144.99
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$159.99
PowerMax Performance Diesel Turbochargers
PowerMax Performance Diesel turbochargers supply your light-duty diesel with the best components for optimizing power, response, and efficiency. PowerMax turbochargers are quick-spooling, high-flowing turbochargers with the right blend of design features that will upgrade power and torque, while lowering EGTs for select diesel trucks. Whether you own a Ford, Dodge, or GM diesel pickup truck, PowerMax has a ball-bearing turbocharger for you! Turbocharger and installation instructions, as well as other components needed for your specific application are included. Features and benefits of PowerMax turbochargers: * Large bore inducer--allows greater airflow for high performance diesels with increased fuel flow * Advanced design compressor wheels--extremely high-efficiency, backward-curved impellers, which allow for a broad airflow range to match the needs of diesels * Exclusive true angular-contact ball bearings--meaning the turbo spools up to 15 percent faster, is capable of high-thrust loads seen in high performance/high-boost applications, and increases overall turbo efficiency by reducing power consumption by nearly 50 percent over traditional journal bearing designs * Performance enhancing oil restrictor--optimizes oil flow for proper lubrication and cooling, while limiting turbo rotational drag which robs power and efficiency * Divided turbine housing--divider wall within the turbine volute optimizes pulse gas energy, which gives greater response and turbine efficiency during low-end and mid-range operation * Ultra-high pressure/high-efficiency turbine--extracts a maximum of energy from the engine's exhaust. Using GMR235 super alloy, the turbine wheel design is optimized for high exhaust flow, and low weight to reduce moment of inertia assisting in crisp response to changes in engine speed * Turbine outlet connection--designed to fit as a direct drop-in to enhance the ease of upgrading stock turbos * Turbine heat shielding--PowerMax utilizes a heat shield to create "dead air space" insulation barrier to keep high exhaust heat energy in the turbine to be converted to mechanical energy, and away from bearings and oil * Design optimized turbine housing--advanced 3D modeling and computational fluid dynamics are used to optimize the volute shape, and the housing is also equipped with an adjustable wastegate allowing adjustment for optimum boost levels * Oil control and seal--a double-row flinger which drives drain oil away from the gas seal rings virtually eliminates compressor oil sealing problems
( 3 )
$2,353.74
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$3,199.99
Garrett G Series Turbochargers
Garrett G Series turbochargers are powerful with small frames. With the "G" designating 81 years of Garrett heritage, these units feature the latest Garrett Advancing Motion technology, along with many advanced features and materials, allowing engineers to push the limits of performance. Garrett G Series turbochargers feature: * Compressor aerodynamics is engineered for maximum horsepower * Fully machined ported shroud reduces compressor surge * Fully machined speed sensor and pressure ports * Forged, fully machined CFD-engineered compressor wheel increases airflow for better efficiency * O-ring added between compressor housing and backplate to reduce the possibility of boost pressure leakage * One-piece center housing and backplate increase durability and safety * Turbine wheel constructed of Mar-M super alloy rated for exhaust temperatures up to 1050 degrees C * Stainless steel turbine housings provide the ultimate durability and temperature resistance up to 1050 degrees C * Oil restrictor and water fittings included * Available in non-wastegated and internal wastegate options of standard and reverse rotation configurations
Not Yet Reviewed
$2,673.99
VS Racing Turbochargers
VS Racing offers a wide range of turbochargers for your horsepower-boosting target. Whether you need greater airflow for racing, some boost for the street, a higher A/R ratio for smoothness, or a low A/R ratio for the drag strip, VS has a turbo to enhance your performance. They're available in dozens of sizes, configurations, and other options.
( 23 )
$699.99
On Sale
Steeda Ford Mustang ProFlow Cold Air Intake Kits
Steeda Ford Mustang ProFlow cold air intake kits are designed for maximum airflow and horsepower. They're manufactured from quality materials to ensure high performance and durability. An easy-bolt on part for the garage mechanic, these kits are supplied with an air box and built-in race-tested velocity stack, as well as a high-flow nano-fiber filter. They mount in the factory location with the included rubber trim to seal the shield against the hood and fender for lower air temperatures. Dramatic power increases across all rpm ranges have been achieved with these premier units. All necessary hardware and easy-to-follow instructions are furnished. Order the Steeda ProFlow cold air intake engineered for fitment on your specific car—then take your Ford Mustang to the next level of performance! (Note: Some models do require a tune.)
( 8 )
$574.95
$514.95
