You know, you shouldn't be cranking over a new engine by hand. Because of the nature of the ABC engines, by forcibly cranking the engine over, you may be ruining the engine. Maybe I'm being overdramatic but cranking it over while the engine is cold is a sure way to lower compression. For the same reason, you should never run the ABC engine rich enough that it is four-stroking. This doesn't allow it to get to operating temperature and... you got it, ultimately lowers compression.