Aeromotive 13109 Regulator, A1000-6 Injected Bypass, Adjustable, EFI, (2) -6 inlets, (1) -6 return Base pressure adjustable from 40-75 PSI. Gasoline and alcohol compatible. Fuel pressure rises on a 1:1 ratio with boost. 1/8 NPT gauge port. P/N 13109 provides (2) ORB-06 inlet ports and (1) ORB-06 return port