Originally Posted by cncmotorsports
Depends on the gas your going to be using. We typically do 15 or 16:1
OK, at the average corrected altitude of 7500 ft. a 15.5/1 comp ratio would work with 116 oct. and 37-8° of lead, what's the hot tip on going to, say Topeka where you're going to be looking at 800 Actual, probably 3700 corrected and twice to three times the water grains? Are we going to have to step down with a thicker head gasket? If so, how thick? I'm under the impression that .060 is our thickest option.
Or do we just bump the timing a couple and suffer on the top end?
Coming from Bear's dumbassed old crew chief . . . .