New to forum
I just purchased a 65 vette convertible with a small block 327. This auto sat in a showroom for a few months with half a tank of gas. Took it out for a test drive and am getting constant backfire and hesitation through the carb as well as backfire out the pipes. Trying to burn out the rest of the fuel in the tank to replenish with fresh fuel. These engines were designed for leaded fuel and my question is...what octane is everyone running in their engines? So far the consensus has been 93 octane. True?
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