11 to 1 on pump gas
check into e-85 converison kits for your carbs, cost u 300$ for the kit. e-85 here is 70 cents cheaper than gas & 105 octane no problems!!!!!!!!!!! i almosted passed on a 80 model warlock, 340 12.5 to 1 compression, 2x4 carbs, tubbed with 31x21 m/t on weld prostars cause i couldn't afford 7.99 a galoon for racing fuel.supper nice truck