Holley Sniper EFI Master Kits include everything you will need to get your new Sniper EFI throttle body setup and running on any of your vehicles, Master Kits include 20 feet of 3/8 EFI fuel hose, in-line electric fuel pump, pre and post filters, return bulkhead, and all of the needed fuel fittings and hardware to get your system plumbed, wired up, Fits single and dual plane intake manifolds, Self tuning ECU means you dont have to be a computer/tuning expert to enjoy EFI, Throttle body mounted ECU - no extra computers to mount or relocate. Holley Sniper 550-511K 4150 Self-Tuning EFI ...