Help With N/A Combo

[84_GT350]

I'd say you should keep it around 10.5:1 comp if you wanna run pump gas. You could probably get away with a little more if you bumped the timing back a bit. But that's just a trade off...more timing, more power...more compression, more power. Doesn't really matter. As for 11s, I think you'll need a bigger cam. I'd also go with a bigger 75mm throttle body. I mean, you've got a 73mm Mass air meter...why make it choke down at the throttle body? Part throttle conditions might be a bit touchy, but at WOT you should make more power.

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1984 1/2 GT350 (#842 Hatchback w/ T-tops), 302HO, Comp cams Xtreme Energy cam, Carter 625cfm carb, Weiand Stealth intake, MSD distributor, MSD coil, FMS 9mm wires, 1 5/8" MAC unequal shorties, 2 1/2" MAC Prochamber H-pipe, Flowmaster 2 chambers, KYBs, 16"x8" 4 lug Cobra Rs, Falken 245/45ZR16s