Holley just brought EFI within range  introducing Sniper EFI master kits! Its 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; 20 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! Features: Dual Pattern bolt on carburetor replacement, designed to fit 4150 Flange & Spread Bore manifolds - (Spread Bore Sealing Plate Part #9006 is recommended) Throttle body mounted ECU  no extra boxes to mount Supports up to 650hp with Four 100 Lb/Hr Injectors! Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)  Includes complete fuel system consisting of; 20ft of 3/8 Vapor Guard Fuel Hose, 12-920 Fuel Pump, Filters, necessary hardware and bulkhead fitting to return fuel into the tank! Internal fuel pressure regulator eliminates the hassle of plumbing an external fuel pressure regulator (Preset to 58.5 PSI) Integrated ignition timing control & coil driver High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays. 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! Self-tuning ECU means you dont have to be a computer/tuning wiz to have EFI! The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides realtime Fuel Map Learn! OEM Style TPS/IAC and Fuel Pressure regulator, for years of dependable service. Included clamp-on oxygen sensor kit ensures a leak free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange