Yeah I think you got it. I just worry that as soon as us hot rodders all start doing it, we will not be allow to pump it in our old cars, really. I allready seen that some papers were talking that is only for new cars that are made from the factory for it. Heck, that gas is 100+ octane, you can run 11, maybe 12-1 compression. On the race track alcohol cars are faster than gas cars, so it should work out the same on the street. I think you need to burn more of it, maybe alot more so it cost more than gas even though it be cheaper per gallon. But as soon as you and others start pulling in with your 11 second cars the cops will put a stop to it. Maybe it take a few years for them to crack down, maybe nobody will care but it seems like every time a good thing happens the party is soon over. You need a special motor to do it right and then you can not use plain gas. Even if you put racing gas in it the carb jetting will be way off. If you want to do it get books and stuff for racing motors that burn alcohol, you just need to lean the alcohol carb out a little cause of the 15% gas and run maybe 12-1 compression unstead of 14-1.I just hate to spend $3000 or so then can not be able use it but maybe nobody will notice a 40 year old car at the pumps.