I know ! Another cam selection post

When I read stuff like "10.5:1 pistons", I see inexperience. No offense meant, this post is meant to help you. You want a measured compression ratio. Just because you have pistons someone said, or you read were 10.5:1, that means absolutely nothing, zero, zilch. All that means is those pistons can acheive 10.5:1 if everything else "measures up". So, you "could have" 8.5:1 if things do not match up with where everything needs to be. Chamber volume, deck height, etc.