Chad, do you have a # for total thickness of the head shims on the RP .21s?
I am having tuning problems, blowing plugs, and want to be sure I put the correct amount in. Most likely it's my inexperience tuning in colder/winter temps or maybe even the P3s, as other racers have suggested to me, but either way, I just want to be sure I'm in the right boat. Thx