Compression Help
I have a 415 SBC race engine that was built for circle track. It has had the block zero decked and has Flat top pistons. It curently has vortech heads that have been milled. The compression is right at 12.5 with this combo. I want to run this motor on the street. I have a set of dart 64 cc heads. With these heads will the compression drop enuff to run 93 otc. pump gas without hurting the motor?