I've had this issue for a while and just now do I wanna mess with it..the base fuel pressure is set at 43,The regulator is new,and the car has good vacuum..the problem is that when a place the vacuum line back on the regulator it only drops 2 maybe 3psi tops. So I'm guessing there is a restriction or a kink, or just plan clogged fuel line somewhere.has anyone else have this issue? I'm almost sure it just not me...if so how did you fix it and does someone sell aftermarket fuel lines for our cars..I can't stand the rich smell no more while at the red light. And is it usually the return line?