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Anyone run a Holley 670 street avenger on a Ebrock performer RPM? Also, is it possible to do a accurate compression check with the motor out of the car by rotating the crank with a breaker bar? I forgot to do it before yanking the motor. (using the starter)


Information overload!



I doubt you will get anywhere near enough rotation speed to get anything remotely accurate . I would do a leakdown test but even then a little heat in the engine before hand would have been nice.

Is the engine original or has it been rebuilt ?