Billet 3 port EFI regulators. Made from billet 6061 T6 aluminium these regulators are an ideal upgrade for the Carburettor or EFI fuel systems. Will support up to 800hp. Ethanol, methanol& unleaded compatible. These regulators have 2 x -8 ORB inlet/outlet ports, 1 x -8ORB return line port and 1 x 1/8" NPT pressure gauge port.