FAST 30227-06KIT EZ-EFI Master Line Fuel Pump Kit Direct bolt-on carburetor replacement with throttle body dimensions similar to Holley And other popular carburettors, including a Holley-style throttle linkage And 4150 square flange intake bolt pattern Includes injectors And fuel rails supporting up to 650 HP No software necessary; intuitive self-learning system will work with only a few simple questions answered in the handheld's Setup Wizard And one throttle screw adjustment Can control electric fuel pump, electric cooling fan And A/C line to raise idle RPM when A/C is turned on Includes in-line fuel pump.