[frenchM3dreamer]

Originally Posted by TrackRat

I do not believe the OP's engine damage is from balance at all. It appears to be from detonation which can be caused by a tune or low octane fuel, overheated engine, etc. Any serious engine imbalance would cause a serious vibration that you could easily feel. Engine balance doesn't cause detonation, piston scuffing, broken ring lands, etc.

thanks for clarifying that...