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Re: 76cc sbc head
You're nowhere near the limit of compression for 93 pump fuel with alum AFR heads. I'm running 8.4:1 dynamic compression with IRON heads on 91 octane......runs like a striped ape with zero detonation. Compression builds torque, run as much as you can get away with. If your SCR/DCR numbers above are accurate, I'd zero deck the block and run a .039 gasket....tighter quench for increased detonation resistance and bump the DCR up a little. I've run as high as 8.85:1 DCR on 93 before with no problems......
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'85 Silverado swb: 383 stroker, 10.5:1, vortec heads, 232/238 roller cam, RPM air gap, performer 750 carb, stainless longtubes, 3" duals/super 44's, T56/4.11 383ci build / exterior refresh thread
'98 Camaro z28: 370ci twin turbo 370ci build
'01 Tahoe LT 4x4: 5.3, longtubes/ory, magnaflow duals, custom tune....wife's DD
Last edited by swb85; 06-15-2009 at 10:44 AM.
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