Quote: Did you balance the rotating assembly? IF not, it's gonna be way off (I think).
Nothing further from the truth! Bet you think the following won't work either, 360 with 273 rods. I've put 2 of them together with zero vibrations! 360, keith black pistons, on 273 rods. And they rev like crazy. The first one I bilt I shifted was shifted at 7200 rpms, ran 12.40's with a stock convertor, on street tires and full exhaust.
