Quench vs. Compression on a daily driver.

And this is why guys get into trouble running pump gas and higher than “normal” compression ratios.

The cam should have been the LAST piece selected based on everything else.

Now the OP is trying to adjust the CR to fit what he has, and that’s always bad.

Ive said it before, but I’ve tested quench. If you can get it and IF the CR isn’t too high getting it, run it. If you can get the CR you want and don't have quench, run it. It’s not a small block Chevrolet. If you can get both the CR you want and quench, do it.

I’m changing out my head gaskets to raise the CR. By doing that, I’m closing the quench down to .042 from .062 and even with the quench in the “danger zone” I can run full timing and have zero detonation issues, but I planned for a CR that high.