Not Ranked
Look for the highest octane (non ethanol) fuel in your area and if need be add a reputable octane booster or a blend of race gas. My CSX with a FE 427 runs great on just 93 (non ethanol) while the dedicated track Shelby GT350 uses 110 race gas.
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~ Steven
6S1806, 1966 Shelby GT350 B/P Race car.
6S246, Shelby GT350 "carryover"
6S1745 Shelby GT350
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