HP & TQ difference between 10.1 comp to 11.1 comp?

RustyRatRod said

Yup and I know people will argue "as long as you keep DNC under blah blah blah..." but again, that requires a learning curve most beginners don't have. Besides all that, it's just a safe bet to build a lower compression engine anyway. Especially with this crap ethanol in the gas.

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Correct. When these post come up I usually chime in and say you can run 11 to one on pump in my case i have 93. But I'm usually quick to point out why my engine runs good on 11.2. Build the engine with running hi comp in mind, smoothed any sharp edges on piston, polished exhaust port, blocked heat crossover, phenolic spacer under carb, electric fuel pump with insulated lines under hood, fresh air Intake ( very important), very cold plugs with MSD, carefull timing and reading of plugs, 4,400 rpm 9.5" stall converter, 3.55 or 3.91 gear, and in a lighter car. Now I have gone with a 6 pack so I don't have the ram air and that intake and carbs hold more heat!!! You really have to nail the plug heat range, that plug is sticking out in the chamber and that is usually going to be the cause of the heat source for detonation and preignition.