Cylinder Head CCs and Compression

I agree that many factors do combine to determine the outcome.
I also have changed my view on cam selection. I bought into the "Run a bigger cam to bleed off cylinder pressure" routine for awhile but have since learned different. The big cam builds MORE cylinder pressure as RPMs increase, making the detonation worse at higher rpms!
Years back when I posted my detonation troubles, there were a LOT of guys trying to help me. I was stubborn as a mule about not changing the pistons. Then, it seemed like too much work to pull the engine. It would have made all the difference with that one move. Since then, many aspects about my work, hobbies and life have changed. I no longer look for the easy way out.