273 dilemma

cudamark said
Even using the original crank, I would rebalance. The factory balance was only so good. Up to 6000 RPM fine, but, above that, rebalance for sure.

I know this for sure and have gotten into PI$$ING matches with others that state the factory balance is not too far off.

Yes, good enough for a street engine working between 2500 and 5500 RPM. But even if ran above 4500 RPM for long times I think its not good enough.