most dirt tracks round here rules spec 4 inch bore .060 over and 3.48 cranks in most super street type class's, unlimited class's gonna be a aftermarket blocks... but them big bore short stroke engines are screamers for sure!
I had to laugh back then because a good buddy of mine got me a job doing R&R transmission work when I was laid off from the mill. Well they were all dirt track guys so I picked up one of their magazines and they were talking about drag racers. We don’t understand how these cars even start with these .750 plus lift cams and crazy duration. Lol