10 sec. 318?

AS far as compression on pump gas, I had a 1970 buick electra 225 (forgive me, I was only 16) with the stock 455 wildcat 10.25 to 1 and ran it on 87 octane most of the time just fine. She made better power on premium, but would still stand still, with no powerbreaking, melting a set of rear tires on 87. Ahhhhh... the good old days of $0.99 gas!