Right now, I have a 3200 lbs bracket Chevelle with a 540. The car goes 9.20's with a best of 9.08, 147. I am thinking about converting to alcohol for the benefits of cooler engine, cheaper fuel, more power, but what are the drawbacks other than warm up time. The car has a Magnafuel 500 pump and 8 gallon cell in the rear with a Magnafuel big port regulator up front. Can these work or do they need conversion? I have a CFM 1150 carb on it that would need to be converted to alcohol. Is a vacuum pump mandatory, I don't have one. Is there any issues with oil changes, ring and bearing life? This engine does not get freshened every year. I was thinking about changing the pistons to get closer to 15:1 from the 13:1 I am at now, but I would also have them gas ported. I have read about leanout valves and stuff like that, but I am nervous because I really know little about it. Thanks for your help. Ray.