Multi port EFI systems require a stable fuel supply to maintain best performance throughout the engine's rpm range. This high pressure and high flow fuel pump features a roller vane pump mechanism which is extremely resistant to clogging and jamming. The pump mounts in-line (out of the fuel tank) with two supplied cushioned clamps for a quick and sturdy installation. The nipple inlet is 3/8 inch With a 5/16 inch Outlet. The wire terminals feature brass studs for secure connections. Made in the USA, the pump is ideal for use as a booster for nitrous oxide applications, or as a stand alone pump for multi port EFI systems on engines up to approximately 500 HP capable of 43 gph at 40 psi.