I bet your timing is 180* off. Line it all up using the TSRM and then pull your cam gears off and put them back on with the marks point down.
I had the same problem, sounded just like yours. It would crank and crank real strong but not turn over. Flipped the cams and started first try.
I had the same problem, sounded just like yours. It would crank and crank real strong but not turn over. Flipped the cams and started first try.