Rob_Mopar said Yes. A high pressure return style regulator will be needed. When I spoke with Edelbrock they said they found most of their customers had their own fuel setup so they removed it from the Pro Flow 4 system. Click to expand...
famous bob said Only 625 h.p. ruined it for me, not that I`m thinking of switching. I do read most all of the fuel inj. posts, hoping to learn more . Click to expand...