My potential compression ratio

Octane, Why are you so hung up on getting the DCR down into the mid 8's when myself and others that have 9+ are getting by on 89 octane?

Don't underestimate the benifits of a closed chamber with a tight quench. If you really feel the need to lower the compression ratio you can without losing the quench. KB has step dish pistons that allow the tight quench under the closed portion of the head and have a dish under the chamber. These will get you static compression down into the mid 9's