Engine break in without a tachometer

MOPAROFFICIAL said

I wonder if Joe Bonamassa just decides he's so good that he Tunes his guitar by ear and goes out there qinging it every bite while the rest of the band uses an electric tuner.
I'll save y'all the wondering.. He doesn't

I think it's not really an issue with a stock type cam to just wing it , more than likely people end up low like 1900 rpm...anyway.

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Full throttle valve float is at around 6000 depending on how the engine was built. Around half throttle is 3000. Not rocket science unless you make it that way. Ever heard of a cam fail because it was broke in at 2750 and not 3000? Ya, me either. Joe doesn't tune his own guitar anyway. He hires it done. And when you play the Blues it is not tuned or played to perfect pitch!