Tom is correct, but you will have high compression and may need more then 93 octane fuel. You could also get custom head gaskets to lessen the effect of the lower octane fuel. My 64 with the 716 heads will just about ping with 93 plus booster. If your on the east and north coast you can get 93 fuel. If your on the west I don't think its available but I maybe wrong and I'm not sure about the south.
|