Holley Sniper EFI Self-Tuning Master Kit

What if?

What if I told you there was an economical way to put an end to cold start issues, hesitations, vapor lock, and even flooding? And what if you could have all the benefits of EFI and still have money left to finish or upgrade the rest of your ride. Now you can. Check out the Sniper EFI from the team at Holley performance.

This is a Dual Pattern bolt on carburetor replacement, designed to fit 4150 Flange and Spread Bore manifolds. With its throttle body mounted ECU there are no extra boxes to mount. This setup supports up to 650hp with Four 100 Lb/Hr Injectors and only requires four wiring connections (Battery +, Battery -, Switched Ignition, and RPM). The kit includes complete fuel system consisting of 20ft of 3/8-inch Vapor Guard Fuel Hose, Fuel Pump, Filters, necessary hardware and bulkhead fitting to return fuel into the tank.


An internal fuel pressure regulator eliminates the hassle of plumbing an external fuel pressure regulator (Preset to 58.5 PSI). The included clamp-on oxygen sensor kit also ensures a leak free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange.


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Holley Performance Products






1801 Russellville Rd.

Bowling Green, KY 42101

ABOUT Holley Performance Products®

Holley has been the undisputed leader in fuel systems for more than 100 years. Holley carburetors powered every NASCAR Sprint Cup team and nearly every NHRA Pro–Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM’s popular LS engine are dominating the LS scene as well. Holley’s products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies, Holley can give you the edge you need over the competition.