The Mr. Gasket Electric Fuel Pump #130P is a gravity feed vane/rotor type high volume low pressure pump designed for race applications and is compatible with gasoline, alcohol and methanol fuels. The operating fuel pressure is factory set at 14 PSI (pounds per square inch). This pump must be used with a fuel pressure regulator, which is NOT included. We recommend a minimum 3/8 inch i.d. (inner diameter) hose with this fuel pump.