Big performance in a small package. The Compact EFI Regulator is designed for applications producing up to 1,000 HP where space is at a premium. Ideal for EFI fuel delivery systems that are limited to one regulator inlet port. Adjustable from 30-70 PSI. Equipped with removable AN-6 male fitting s for inlet and outlet ports, eliminates the need to buy additional fittings and O-rings. Dedicated, 1/8′ NPT gauge port located opposite the side inlet. Fuel pressure rises on a 1:1 ratio when referencing boost.