You aren't reading what I'm writing man. All I'm saying is aluminum transfers heat better and a cooler chamber is better. I don't know if aluminum transfers heat better enough to have a cooler chamber. I don't want to guess one way or another, because I don't know.
I'm going with aluminum heads because I need them to flow well, not because of any adaptability to CR increase. Everyone here seems to agree for the most part that I don't have to worry about detonation with 93 if my timing is on, so thanks for the info everyone. Learned a lot in this thread.
