Just installed vortec heads, performance plus cyclone intake, tbi adapter and throttle body spacer to my 350 tbi. Engine has a mild cam in it, and headers with dual 2 1/2 pipes. Engine runs great around 6 degrees, but can't get rid of a power loss when I slam the gas down. It falls on its face and backfires through the intake. If I don't slam it down and just moderately go to WOT it keeps up but just doesn't seem to have as much power as it should have. I bumped up the regulator to 15 psi also. Wondering if I have to put 454 injectors in it, or if I should get a custom burn prom for it? If I go prom, how can I tell what my cam specs are without a cam wheel? Any good sites for a custom prom? thanks in advance!

https://www.thirdgen.org/forums/tech...formation.html





Pulled the engine fault codes ?

https://www.thirdgen.org/forums/tech...s-dumbies.html

https://www.thirdgen.org/forums/post...781-post4.html