Performance EFI regulator designed for medium to high horsepower applications. This regulators features Aeromotive?s high-flow design, superb pressure control and legendary durability. On the street and at the track, this pressure regulator has logged more miles, laps and passes than any other performance EFI regulator in the world! 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.