I race with a guy that seems to not to like the F brush. I put a comeleon 2 from EA (F brushes installed). I ran some hot laps, 2, 40 lap Qualifiers and 50 lap A main. I was able to TQ and finish 1st. Didn't even take the motor out to clean it. I raced in the late model class also was able to TQ but had some bad luck in the A.
raced @ Chico's In Lafargeville NY
http://www.dirtoval.com/forums/showthread.php?t=17991
Bob Mott