I'm currently building a 440 street motor for my sig car and need opinions on my quench distance. I'm using aluminum heads with a true static CR of 10.0 to 1. I am having the block decked to where the pistons are .005 below deck. Figuring a compressed gasket thickness of .039 this would give me a 'quench' distance of .044 . The head gaskets I was planning on using were the ROL Hi-Temps as they have a 4.50 diameter and that is about the minimum I need for my 440 source head chambers. The problem is the ROL's are spec'd at .045 compressed thickness which would give me a quench distance of .050 . Is this going to be a problem with 92 oct pump gas? Thanks