"Well after a fresh tank of Reg Unleaded and a 20 min cruz around town im left with a cracked head and no compression in 4 out of 6."
if that's what yer "left with", question is what did you start with?
answer: some burnt valves, broken rings, beer in the tank and no water in the rad
yeah, blame it on the gas, then after you spend a bundle on getting it rebuilt you'll know to never put gas in it
Bill