Place regulator between fuel pump and carburetor to regulate fuel pressure when using mechanical and electric performance fuel pumps. Two piece aluminum body has a single 3/8'NPT inlet port on the bottom and two3/8'NPT side outlet ports. 'Dead Head' style regulator does not require a return line back to fuel tank or cell. 1/8' NPT port for mounting a fuel pressure gauge or sender line. Regulator also includes steel mounting bracket.