Availability
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
( 7 )
$1,649.95
Edelbrock Performer RPM Dual Quad Air-Gap manifold and carburetor kits provide everything needed to convert from a single carburetor intake to a powerful dual-quad carburetor intake system for small block Chevys. These kits include the new RPM Dual Quad Air-Gap intake, two 500 cfm Thunder Series AVS carburetors (one manual choke, one electric choke), Edelbrock high-tech progressive throttle linkage, a fuel line, and intake manifold gaskets. These kits are available in your choice of natural or the popular EndraShine finish.
( 7 )
$1,776.95
—
$1,976.95
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
( 20 )
$1,599.95
—
$2,049.95
Fear not, fuel injection fans. FAST has just made it easier than ever to convert your engine from a carburetor to fuel injection with these FAST EZ-EFI self-tuning fuel injection systems. The most important feature is the self-tuning operation that does not require chasing components, expert tuning experience, or a laptop computer to tune. Simply hook them up, answer the basic Wizard setup questions on the included hand-held display, and the systems truly tune themselves. The FAST EZ-EFI self-tuning fuel injection systems are totally complete systems. They include the ECU, a wide-band oxygen sensor, a wiring harness, and the innovative new FAST 4150 throttle body. The throttle body delivers the total package approach for anyone with an existing 4150-type intake manifold.
( 26 )
$1,573.95
FiTech Easy Street 600 hp Total Package EFI swap kits make it easier for classic car owners to upgrade to EFI, enhancing reliability with a single part number. Each complete package features FiTech's proven Easy Street 600 hp throttle body as the heart of the system, delivering smooth and reliable performance. Along with each Easy Street is a new direct-fit EFI-ready fuel tank with a Go Fuel internal pump module, a high-pressure internal fuel pump, and a complete steel braided hose kit to get the fuel to the classic gold-finished throttle body. A high-flow serviceable filter and AN-style fittings are also included, making all the connections a breeze to install. Choose the FiTech Total Package designed for your vehicle.
Not Yet Reviewed
$1,956.99
On Sale
Nitrous Outlet EFI dual-nozzle systems deliver the nitrous in two locations for improved atomization over a single-nozzle system. Designed to work with any late model vehicle, these systems include everything needed to add up to 150 hp to your vehicle--hardware, wiring, jetting, solenoids, hoses, and two 1/8 NPT nozzles. They also include a wide-open throttle (WOT) switch that only allows the systems to be activated when the motor is at full throttle. This feature will help in preventing engine damage and lean spikes. These complete race-proven Nitrous Outlet systems have quality components for extreme performance.
Not Yet Reviewed
$2,038.99
$1,835.09
On Sale
Upgrade your current single stage system. Nitrous Outlet EFI dual-stage single nozzle systems are the simple way to add another stage of nitrous via their 1/8 NPT wet nozzle, break up a large shot, and keep the tires hooked up and going down the track nice and straight. They include everything needed to add horsepower to your late model EFI vehicle--hardware, wiring, jetting, solenoids, hoses, and nozzles. They also include a wide-open throttle (WOT) switch that only allows the systems to be activated when the motor is at full throttle. This feature will help in preventing engine damage and lean spikes. These complete race-proven Nitrous Outlet systems will convert your system to a true dual stage capable system.
Not Yet Reviewed
$2,369.99
$2,132.99
FAST EZ-EFI Master fuel injection system kits add an easy-to-install in-tank electric fuel pump to the completely self-tuning electronic fuel injection system that requires no laptop or tuning experience. They include a 255 lph Walbro high-pressure pump featuring a lightweight, compact design that is perfect for performance applications. The in-tank pump is cooled by the fuel in the fuel tank and flows enough fuel at 60 psi to support up to 600 hp applications. These kits include a mini ECU, wide-band oxygen sensor, wiring harness, injectors, and 4150-style throttle body.
( 1 )
$1,556.95
Modal Header
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
