I've built up a couple of 250's with 307 V8 flat top pistons and a 60 thousandths head mill job. They will still run on regular gas after that, so the original compression ratio must be pretty low.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!