Just what does "within 2 grams" mean anyways? Does that imply that the bobweights for each cyl are the same within 2 grams and the crank is balanced to the median bobweight?

The rotating assy I got from Indy fpor the 540 was supposed to be "within 5 grams" and my builder had to do a hellova lot of drilling to bring the crank into balance. He couldn't understand the "5 grams" stuff either.

Good ole Josh...