Update: Heating problem fixed! After a new water pump, 3 cooling system flushes, putting on smaller pulley on water pump (to speed up fan and pump). Compression checks for head gasket problems and I don't know what else, Took the radiator back to the guy who rodded it to start with and had it flow checked. Radiator was operating at 10% flow. Moral of the story, never assume anything. Hope this helps someone down the road. Thanks Randy