need ideas on a rich running 360

Rebuilt 360 huh? Well its something simple that you could be overlooking. Have you over torqued your rocker arm assembly or not torqued enough which would cause your valves not to open the proper distance. You have tried everything imaginable. Poping out the carb sounds like an intake valve isnt working properly. Perhaps you could have a weak or collasped spring. I know just how frustrating this can be. I had a similar problem and after replacing wires, plugs, etc... I found that my pushrod had come thru my rocker arm... Good luck..