Good luck with the rebuild. Always sad to see such an idealic motor destroy itself. I dont know too much about the crammer.......but they sure sound nice.
Timing and Tolerance - yep at that load and rpm and based on what you mention above it sounds like you know where to be looking. Perhaps the "feeling of lack of power" for what it is will help you locate the issue.
Did KC give you a list of specs (timing and tolerances) for you to now cross reference against?