Mallory Comp Pump Series electric fuel pumps are ideal for high performance street or race applications. They have a high-quality, permanent-magnet 12 V electric motor and feature factory-set base pressure. Intended for gasoline use, each pump assembly features a quiet, high-efficiency Gerotor design that provides stable output. The housings are fully machined and have a special design that allows for some adjustment of the output pressure. All Comp Pump Series fuel pumps must be used with a fuel pressure regulator. The pumps are available in many different ratings, from 60 to 500 gph, with fuel pressure ranging from 4 to 100 psi. They're perfect for any carbureted or fuel injected engine.