dirt track'in a A-body

Keep your motor and tranny as simple and bulletproof as possible, don't stretch it for the max HP. At this level, its going to be more about car setup and driver smoothness than how much HP your puttin down. I didn't see anything about wheel backspace. A little trick I use to use was run thru the scales at tech with 4" backspace wheels all around, then go back to the pits and punch the right sides out with a 1 or 2" backspace and suck the left sides in with a 6" wheel. My class didn't tech after the race so most of us were doing it that way. You will find it much more enjoyable to go to the track and work on your setup than fighting motor problems.