Holley's Sniper EFI Self-Tuning Master Kit is the best way to upgrade your car to fuel injection in a cost-efficient way with just 4 simple connections required. Take your build to the next level and take advantage of improved engine performance, better MPG's and easier starting. Featuring a dual pattern bolt on carburetor replacement designed to fit 4150 flange & spreadbore manifolds and a throttle body mounted ECU with no extra boxes to mount. When it comes to tuning.. simplicity is what we strive for. Simple calibration wizard allows you to just answer a few questions about your engine and the system will begin self-tuning with no laptop required. Use the high resolution 3.5" full color touchscreen for tuning and gauge displays. Includes a complete fuel system consisting of; 20ft of 3/8" vapor guard fuel hose, fuel pump, filters, and all necessary hardware to return fuel into your tank. This kit supports up to 650hp with Four 100 Lb/Hr injectors! Additionally, you're getting a 4.9 wideband oxygen sensor with a leak free oxygen sensor, oem style TPS/IAC, fuel pressure regulator, all Stainless Steel T-Bolt clamps and a Stainless Steel weldable flange. Pair's seamlessly together with Holley's Sniper Hyperspark Ignition, Fuel System's, Air Cleaners, Throttle Body & Digital Dash.