Please be aware it could be 8 day delivery on these. 
 
Holley just brought EFI within range introducing Sniper EFI master kits! It's economically priced so you can have all the benefits of EFI and still have money to finish or upgrade the rest of your ride! Perfect for street rods, muscle cars, off road trucks or nearly any carbureted vehicle. The Sniper EFI master kit contains the most complete EFI fuel system on the market. Everything is included to completely plumb your fuel system including; 40 feet of 3/8" EFI Hose, in-line fuel pump, post and pre fuel filters, return bulkhead, and all of the necessary fittings and hardware. Put an end to cold start issues, hesitations, vapor lock, and flooding. Upgrade to Sniper EFI and get the tactical accuracy of EFI today!
 
Holley Sniper EFI Self-Tuning Fuel Injection Systems
Holley Sniper EFI self-tuning fuel injection systems deliver all the benefits—and none of the hassles. These full-featured throttle bodies are easy to install, can support a lot of horsepower, and will keep your budget intact. They put an end to carburetor cold start issues, hesitations, vapor lock, and flooding. Each of these systems include an internal fuel pressure regulator (preset to 58.5 psi), eliminating the hassle of plumbing an external model. Make your conversion simple, while getting maximum bang for your buck, with a Holley Sniper EFI self-tuning fuel injection system in your favorite available finish.

Holley Sniper EFI self-tuning systems feature:

* Available finishes: black ceramic, classic gold, and shiny
* Available in base and master kits (master kits include complete fuel system: 20 ft. of Earl's Vapor Guard fuel hose; 12-920 fuel pump; filters; necessary hardware, and bulkhead fitting for returning fuel to tank)
* Dual-pattern bolt-on carburetor replacement, designed to fit 4150 flange and spread-bore manifolds (spread bore sealing plate 9006 recommended)
* Supports up to 650 hp with four 100 lbs./hr. injectors
* 4-wire vehicle connection: battery +, battery -, switched ignition, and rpm
* Integrated ignition timing control and coil driver
* Color touchscreen for setup and gauge views
* Calibration wizard and self-tuning, integral-mounted ECU –no laptop required