This high pressure replacement pump for the Atomic TBI 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 and outlet are 3/8". The wire terminals feature brass studs for secure connections. Made in the USA, the pump is ideal replacement pump for Atomic TBI or 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 525 HP. Capable of 48 GPH at 43 PSI.