The Aeromotive universal three-port bypass regulator is a dual-purpose unit for EFI or carbureted street or strip use, with base pressure adjustable from 3–20 PSI (standard spring) or 20–60 PSI with the included high-pressure spring. It accepts pumps from about 100–250 GPH, all ports are 3/8" NPT, and it requires a return line to the top of the tank for proper bypass operation and stable pressure control.
Aeromotive Universal Bypass Regulator - 3-Port 3/8in NPT