This fuel filter has a built in regulator and is perfect for returnless fuel line plumbing on LS engine swaps running at 58 psi. Originally designed for Corvettes, we regularly use this for LS retrofits.
This unit has a 3/8″ inlet, 3/8″ outlet to the fuel rail, and a 5/16″ outlet for the return line to the tank.
For -6AN adapters:
This is not for supercharged applications.
Cross reference to AC Delco pn GF822