I have a question for you guys, I just got about 1 1/2 gallons on my GRP Tuned, and most of the metal pinch is gone, but still has good compression. I run 20% Byrons fuel. Should I take off one of the shims? I have it at factory (One silver and one copper shim). What would be a good deck height for this motor?

This is my first expensive engine, and I love it, just don't want to trash it.

Thanks in advance!!

Jimmy