Found this GEM in the garage, BRAND NEW! SX (ESSEX) Performance Fuel Regulators Universal application, will work for various applications. Mounting bracket is supplied for various placement in engine compartment. (Model Part# 15404) Has two (2) -6 AN inlet/outlet ports and one(1) -6 AN return port and a 1/8 inch NPT gague port. Maintains stable fuel system pressure between 35-90 PSI for tuned flow rate flexibility up to 180 GPH (1,100 PPH) Features a vacuum/boost compensating port for a supercharger, turbo, or intake manifold vacuum connection Holds minimum fuel system pressure for 25 PSI for at least 20 minutes after pump shutdown.