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Holley Accelerator Pump Tuning Kits

Holley accelerator pump tuning kits are composed of a selection of accelerator pump hardware components, including pump diaphragms, pump nozzles, pump cams, and related parts. Contained in a convenient plastic parts case, these kits have all that is required to properly tune and calibrate the accelerator pump circuit(s) for your street, drag, Circle Track car, or tow vehicle. A handy parts guide is affixed to the inside case cover to assist in reordering components when necessary.

4.67 out of 5 stars ( 18 )

$239.95

On Sale

FiTech Go Street EFI 400 HP Self-Tuning Fuel Injection Systems

EFI conversions made easy--FiTech Go Street EFI 400 hp systems are true carburetor replacements. And the price is a "Go" as well! Good for up to 400 hp, these 4-injector throttle bodies simply swap out your current 4-barrel carburetor for EFI performance. You don't have to mess with the ignition at all. It's too easy not to go for it--FiTech Go Street EFI 400 hp systems. Features include: * Self-tuning fuel injection * Latest Bosch 4.2 wideband oxygen sensor * ECU is mounted on throttle body * Universal base fits any 4-barrel manifold * Throttle linkage suits most transmissions * Three fuel inlet connections * Voltage control fuel pump control * Wet flow technology * Swirl spray annular discharge design * Built-in fuel pressure regulator * Designed for applications making at least 6 in. of vacuum at idle

3.83 out of 5 stars ( 222 )

$869.99

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$1,319.99

$782.99

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$1,187.99

Edelbrock Uni-Syn Carburetor Balancing Instruments

Edelbrock Uni-Syn balancing instruments are precision tools that provide a visual method of balancing multiple carburetors to a high degree of accuracy. Instructions are included.

4.33 out of 5 stars ( 15 )

$49.99

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$67.99

EMPI Pro-Sync Carburetor Synchronization Tools

EMPI Pro-Sync carburetor synchronization tools offer benefits like precise and accurate tuning for multi-carburetor setups, leading to smoother engine performance and improved fuel efficiency. They are constructed with high-quality materials for long-lasting use and feature a user-friendly design with a clear, numbered scale for easy, precise synchronization without restricting airflow, making them suitable for both professionals and DIY enthusiasts.

Not Yet Reviewed

$61.99

Motion Pro SyncPro Carburetor Tuners

Motion Pro SyncPro carburetor tuners utilize precise, 4-channel vacuum indicators specifically designed for the intake synchronization of engines with multiple carburetors or throttle bodies (maximum vacuum rating for these tools is 40cm Hg). They can be used with any 2, 3, or 4-cylinder, 4-stroke motorcycles, and the easy-to-read scales are not affected by barometric pressure changes, providing you with precise synchronization. Features include: * Mercury-free design uses non-toxic manometer fluid * Spill-proof design for storage in a horizontal or vertical position * Handlebar hook to clip for easy use * Rugged, impact-resistant ABS enclosure with convenient storage area for adapters * Rubber feet on enclosure bottom help prevent sliding * Manometer fluid, hoses, 5mm adapters, inline restrictors, and instructions Notes: * 5mm adapters are for use on many Honda® and Suzuki models * Optional 6mm adapters are available for use on most Yamaha models * Most Kawasaki models do not need adapters

5.0 out of 5 stars ( 2 )

$129.99

Motion Pro Brass Vacuum Adapters

Motion Pro brass vacuum adapters will eliminate the need to install adapters before every carburetor synchronization. They can be permanently installed on motorcycles that only have a plug in the vacuum port and rubber caps are included to seal vacuum. Motion Pro brass vacuum adapters are available in two different sizes.

Not Yet Reviewed

$4.99

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$5.99

Ford Performance Parts Fox Tuned by Ford Performance Suspension Leveling Kits

Ford Performance Parts Fox Tuned by Ford Performance suspension leveling kits match the advanced technology of Fox 2.0 Performance Series IFP front and rear shock kits with the tuning of Ford engineers. These proprietary kits are designed and tested to optimize ride and performance on-road and off, making them the best solutions for the most discriminating performance enthusiasts. Features include: * Front coilovers feature top-quality racing coils selected to deliver the optimal spring rate * Levels truck front to rear * Improved front approach angle over stock * Improved breakover angle over stock * Vehicle-specific upper front mounts include composite bushing to isolate noise and vibration * Locking, spring preload rings allow easy front ride height and preload adjustments * Provides a comfortable on-road ride and predictable off-road handling in even the toughest conditions * Easy bolt-on installation with no other modifications required Fox 2.0 Performance Internal Floating Piston shocks: * 2.0 in. impact extruded and CNC-machined 6061-T6 clear anodized aluminum one-piece body resists rust over time and increases cooling capacity * Hard-anodized body plating for a durable finish * Internal IFP monotube reservoir design separates shock oil from the high-pressure nitrogen * Black-anodized, CNC-machined 6061-T6 billet aluminum components * 5/8 in. hard chrome plated heat-treated alloy steel shafts * Race-developed high-flow piston design * Ford Performance specific valving to maximize performance * Redundant sealing pack system main seal, wiper seal, and scraper seal * JM92 Advanced Suspension Fluid for improved performance at variable temperatures * Quiet nitrile rubber bushings allow for increased suspension articulation

4.86 out of 5 stars ( 7 )

$1,619.99

On Sale

FiTech Go Street EFI 400 HP Self-Tuning Fuel Injection Systems with Force Fuel Systems

FiTech Go Street EFI 400 hp self-tuning fuel injection systems with Force Fuel systems make the switch from carburetor to EFI about as easy as it gets. Good for up to 400 hp, these 4-injector throttle bodies simply swap out your current 4-barrel carburetor for EFI performance. You don't have to mess with the ignition at all. The Force Fuel system helps quench its thirst with easy hookup and versatile mounting. FiTech Go Street EFI 400 hp and Force Fuel system combos are too easy not to go for! Order the model with options best suited to your application. Includes: * FiTech Go Street EFI 400 hp self-tuning fuel injection system * FiTech Force Fuel system

3.73 out of 5 stars ( 22 )

$1,235.99

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$1,281.99

$1,112.39

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$1,153.79

Detroit Speed Detroit Tuned Steering Rack and Pinions

Detroit Speed Detroit tuned steering rack and pinions have been optimized to provide an exceptional modern performance feel on the street and on the track. They're available in both standard and narrow widths that are 24.5 in. and 21.5 in., respectively. They feature valving that's specifically designed to provide the increased performance feel found in late model performance vehicles, and they're made from all-new, superior-quality components for long-lasting durability. Detroit Speed Detroit tuned steering rack and pinions come complete with polyurethane mounting bushings and have an internal inner tie rod boot balance tube. So, if you want nothing but the best when it comes to your hot rod or street musclecar, Detroit Speed Detroit tuned steering rack and pinions are your answer.

4.5 out of 5 stars ( 2 )

$629.95

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$848.95

Motion Pro SyncPro Carburetor Tuner Adapter Sets

Motion Pro SyncPro carburetor tuner adapter sets are offered as replacements and accessories to use your SyncPro to its full potential. Your carb tuner originally included 5mm adapters, and those along with different 6mm sets available. Select the high-quality Motion Pro adapters needed for your SyncPro carb tuner. Adapter sets available: * 08-0013 -- Replacement carb adapter set -- Two long and two short 5mm brass tubes * 08-0040 -- Two long and two short 6mm brass tubes * O8-0168 -- Four 6mm short brass adapters Notes: * 5mm adapters are for use on many Honda® and Suzuki models * 6mm adapters are available for use on most Yamaha models * Most Kawasaki models do not need adapters

Not Yet Reviewed

$8.99

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$10.99

OTC Propane Enrichment Kits

Part of their automotive fuel service specialty line of products, OTC propane enrichment kits ensure a correct idle mixture and compliance with emission standards. They work on domestic and imported vehicles and use a standard 14 oz. propane cartridge.

Not Yet Reviewed

$192.99

Sierra Marine Tune-Up Kits

Sierra Marine tune-up kits keep your water vessel in top running shape and will help to avoid costly repairs in the future. Sierra Marine gives you everything needed for your engine all in one package, so there is no guesswork when it comes to finding the right parts. Don't wait any longer—get a tune-up kit today!

4.89 out of 5 stars ( 9 )

$43.99

On Sale

FiTech Go EFI 4 600 HP Self-Tuning Fuel Injection Systems

When it comes to fuel injection versus carburetors, new school is just too cool. FiTech Go EFI 4 600 hp self-tuning fuel injection systems have the ECU mounted on the throttle body for greater self-containment, clean installation, and easy setup. These trick systems fit any 4-barrel intake manifold, and are designed for use on engines from 250 to 600 hp. They feature a built-in fuel pressure regulator, an ECU that finds the best tune and self-adjusts to it—and the ability to change air/fuel ratios and ignition timing on the fly. Each system has a hand-held controller with a touch screen for initial setup, throttle linkage that suits most transmissions, and is manufactured with OE engineering. FiTech Go EFI 4 600 hp self-tuning fuel injection systems leave the guesswork behind. Order the model with options best-suited for your application. Additional features: * Choice of three fuel inlet connections * Will work with CDI box, but not required to control timing * Adjustable fan control switch * Can be used with an engine-mounted returnless fuel command center * Uses easy-to-replace, GM-type sensors and Bosch 4.2 wideband oxygen sensors * Wet Flow swirl spray annual discharge obtains complete atomization * Voltage-controlling fuel pump control reduces power under low loads to lower temperatures * Systems with mounted ECUs offer spark control without the need for an external spark box or special distributor * Designed for applications making at least 6 in. of vacuum at idle

4.13 out of 5 stars ( 260 )

$999.00

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$1,367.99

$899.10

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$1,231.19

Motion Pro Restrictor Jets

Motion Pro replacement resistor jets are available for their SyncPro carb synchronize tuner. Ok, so do you remember when trying to synchro your carb's with vacuum gauges and the needles used to shake really bad? With Motion Pro's resistor jets, these little jewels will stabilize the vacuum 'pull', eliminating the shake, surge, and flutter you'd get. Put the resistor jets in the hookup line to the carb's—and voila! You'll get calm vacuum 'pull', allowing you to accurately adjust all the carburetors to each other. You may want to keep a spare set on hand, because your buddies are sure to want a set too!

Not Yet Reviewed

$9.89

Summit Bucks

VacuumMate Allweather Carburetor Synchronizer Tools

VacuumMate Allweather carburetor synchronizer tools are an electronic device for accurately synchronizing multiple carburetors or fuel injection throttle valves on engines, especially for outdoor and marine use. They use electronic pressure transducers instead of traditional mercury gauges, include a built-in tachometer, and feature four bright LED displays that are readable in sunlight. Their "Allweather" design makes the tools suitable for harsh conditions, and the "DYN" mode aids in diagnosing problems that prevent proper synchronization. Key features: * Engine synchronization: Precisely synchronizes up to four carburetors or fuel injection throttle valves on 2- and 4-stroke engines. * All-weather design: Features a rugged, water-resistant casing and bright, LED displays that are clear even in sunlight, making it ideal for outdoor and marine use. * Electronic sensors: Uses four industrial/medical-grade pressure transducers, which are less susceptible to mechanical shock and self-calibrate for atmospheric pressure changes. * Built-in tachometer: Displays engine speed in RPM, assisting with synchronization adjustments. * Diagnostic mode: The "DYN" (Dynamic) mode helps troubleshoot issues like a leaking valve that would prevent proper synchronization. * Expandable: Can be expanded to six cylinders with an optional adapter. * The TS-71 model kit includes a rechargeable internal battery for portable use, providing about six hours of autonomy; plus flexible, durable hoses and adapters for easy connection to various manifold configurations.

Not Yet Reviewed

$899.95

Motion Pro SyncPro Carburetor Tuner Hoses

Motion Pro designs and manufactures high-quality cables, specialty tools, and controls for motorcycles, ATVs, and UTVs. These hose sets are replacements for your SyncPro carburetor tuner. The hoses are manufactured from factory materials and specifications to ensure proper fitment and long-lasting performance.

Not Yet Reviewed

$39.99

Holley Sniper EFI Quadrajet Self-Tuning Fuel Injection Systems

Holley Sniper EFI Quadrajet self-tuning fuel injection systems are ideal replacements when you're tired of rebuilding the 50-plus-year-old Rochester Quadrajet (Q-jet) on your classic ride. They're the first bolt-on, spread-bore, EFI throttle-body systems not requiring any additional adapters, sealing plates, or intake manifold swaps. They retain the same great features as the 4150 Sniper EFI version (four 100 lbs.-hr. injectors; built-in timing control; high resolution 3.5 in. full color touchscreen; etc.). Their throttle body will support naturally aspirated power up to 500 hp. In addition, they offer multiple fuel inlet configurations that allow for a stock-appearing installation and fit most stock air cleaners. Modernize your Q-jet-powered classic vehicle with a Holley Sniper EFI Quadrajet self-tuning fuel injection system. They are offered individually or in Master kits with 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. Features, items, and specs: * Designed to deliver the signature "Rochester Roar" at wide-open throttle! * Throttle body-mounted ECU–no extra boxes to mount * Only 4 wiring connections required (battery positive and negative, switched ignition, and rpm) * Transmission provisions on throttle lever for TH350/TH400 and 200R4/700R4 * Universal throttle and transmission kick-down bracket * Brake booster adapter (if required) * 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) * Internal fuel pressure regulator preset to 58.5 psi * 20 ft. of 3/8 in. Vapor Guard fuel hose * Fuel pump and filters * Necessary hardware and bulkhead fitting to return fuel to the tank * Genuine Bosch LSU 4.9 wide-band oxygen sensor provides real-time fuel map learning * OEM-style throttle position sensor (TPS) and idle air control (IAC) for years of dependable service * Clamp-on oxygen sensor kit ensures leak-free oxygen sensor installation with stainless steel T-bolt clamps and weld-ready oxygen sensor flange * United States Coast Guard approved (certified to ISO 8846, SAE J1171 requirements) * Available in three finishes--Classic Gold, Shiny, and Black Ceramic

3.25 out of 5 stars ( 8 )

$1,799.95

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$2,099.95

On Sale

Summit Racing™ Ignition Tune-Up Kit Pro Packs

Summit Racing™ offers ignition tune-up kit Pro Packs for countless vehicles from the 1950s and up. Depending on your application, the kits may include a distributor, ignition coil, spark plugs and wires, ignition box and module, rotor, and many other options. Get the most from your ignition and engine; choose the ignition tune-up kit Pro Pack recommended for your car or truck.

4.65 out of 5 stars ( 54 )

$478.87

$169.89

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$1,082.80

Quicksilver Marine Tune-Up Kits

Quicksilver marine tune-up kits provide an easy, reliable way to restore peak ignition performance and help keep your boat running at its best. Designed as genuine OEM maintenance solutions for a wide range of Mercury, MerCruiser, and marine engine applications, these kits include components selected for specific engine applications to help simplify routine service. Built to meet Mercury Marine specifications, these tune-up kits help promote faster starts, smoother idling, improved throttle response, and dependable power on the water while offering the durability and corrosion resistance required for demanding marine environments. Select the Quicksilver marine tune-up kit that's designed for your specific marine engine requirements.

5.0 out of 5 stars ( 1 )

$19.50

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$118.99

Summit Racing™ GM HEI Ignition Tune-Up Kits

These Summit Racing™ GM HEI ignition tune-up kits offer an affordable way to bring your stock GM HEI distributor back to life. They include the following components: * High-power 50,000 V HEI coil * Distributor cap and rotor * Coil dust cover * Low-saturation ignition control module * Adjustable vacuum advance unit * HEI bushing (between the coil and cap) * Wiring harness and capacitor * High performance advance spring and weight set * Mounting hardware

4.55 out of 5 stars ( 181 )

$81.99

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$84.99

Holley Carburetor Tuning/Calibration Kits

Holley carburetor tuning/calibration kits contain a selection of main jets, pump nozzles, and power valves in popular sizes, all contained in a handy and durable compartmentalized plastic case. Ideal for trackside tuning, these kits provide a quick and easy way to accomplish your carburetor tuning with the correct parts. In addition, the parts case allows you to keep parts organized and readily at hand. A handy parts guide is affixed to the inside case cover. Numbers referenced on the parts guide will assist you in reordering components when necessary. Gaskets are included to facilitate carburetor re-assembly.

5.0 out of 5 stars ( 10 )

$199.95

SA Design David Vizard's How to Super Tune and Modify Holley Carburetors

Meet your performance goals now more than ever! In his book, David Vizard's "How to Super Tune and Modify Holley Carburetors," the author explains the science, the function, and the tuning expertise required to get your Holley carburetor to perform its best for your performance application. Whether it's used for street, strip, supercharging, or race applications, this book is an essential resource that no Holley carburetor owner should be without! It makes a great addition to any hot rodder's automotive library!

4.48 out of 5 stars ( 21 )

$25.99

AEV Conversions Tuned Bilstein 5100 Shocks

AEV Conversions Tuned Bilstein 5100 shocks offer a slightly firm, sportier feel and they are available in different AEV kits as well as in sets by themselves. Combined with AEV's progressive rate coil springs in their DualSport kits, the pairing produces an increase in both up travel and down travel with better articulation, along with improved off-road speed potential and bottoming control. For a suspension system that will impress on the street and trails, try on a set of AEV-tuned Bilstein RT5100 shocks. Sets include front and rear shocks; choose the ones designed for your Jeep.

5.0 out of 5 stars ( 1 )

$368.00

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$878.21

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.

3.86 out of 5 stars ( 14 )

$51.99

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