J Heads

one thing about ring gaps- on the KBs you need excessive end gap, even the little instruction sheet with the pistons will tell you this, they have a little chart, but what they do not list is that you have to gap both rings, the paper stated just the top- this has been prooved to be very bad on both the dyno and on the street. If you just gap the top one in about five hundred miles or so you'll start pumping. I second the cleanliness statement, At work when I'm showin new guys how to build engines I tell them that an engine has to be clean enough to eat off of, and then cleaned again!