[Nuke427]

Really need a cam, head and intake profile to suggest proper jetting for your setup. In my case I'm running a 342ci, 750 custom dp with 78 primary and 84 secondary and a 3.5 power valve. I don't have much vacuum. And I am running a hydraulic cam, it just happens to be 245-256 duration with 595 lift. Also running Victor intake and heads with 210cc intake runners.