mattdel

?
the regulator should be keeping the entire fuel system at the same pressure, you shouldn't be getting different readings, plus there is only 1 port to test pressure, so how are you getting two readings?

mjr46

Have you checked your timing??? if it's retarded to much you could cause the headers to glow

cobrastang88

i have two readings because ive been trying to figure it out so i installed a test port before and after regulator to adjust pressure into the fuel rail, i also have a fuel pressure test port before my fuel filter, i tapped into lines and added them, my timing is dead on the money, my problem is in the fuel/air system