Edelbrock part #1712 Victor Series fuel pump is for Big-Block Chevrolet. The Edelbrock Victor Series fuel pump is a must for drag racing, circle track racing, street machines or any application that demands a high-volume fuel delivery, these fuel pumps feature a high quality three stage polished finish. High-volume 3/8" NPT inlet and outlet orifices surpass the capacity of conventional models. Produces 10 psi and must be used with an external fuel pressure regulator such as our Fuel Pressure Regulator #8190 or #1727. For gasoline only. Clockable lower housing can be rotated in 60 Deg Increments for best inlet/outlet alignment.