Edelbrock part #17303 fuel pump is a gravity fed type pump with a simple 2 wire design. It requires approximately one amp average draw at maximum delivery and works on 12 Volt negative ground systems only. It features an in-line style rotor and vane pump design. 2-3.5 PSI, 30 GPH for most carbureted applications and is compatible with gasoline and E85. Pump has integrated 5/16 barb fittings on fuel outlet and 5/16 fitting on included fuel filter inlet.