Originally Posted by Needforspeed3685
Nope...no pressure regulator on the rail, unless you mean somewhere along the lines that run up the frame rails!
This is probably a returnless fuel system. There should be a fuel pump controller mounted near the rear of the exploder, should be a little black box. Trace the wires coming from the sending unit. That controller actually adjusts voltage to the fuel pump depending on fuel rail pressure and/or calculated load. I may be way off, but if it has no regulator, thats pretty much all thats left.