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Actually I think I can see one problem with the porting job, the inlet ports have been polished too much.
Agreed, my dad used to polish it to a shine, and then he would use a drill with a piece of round bar split down the middle. In this groove he would put a very rough piece of sand paper. He would then spin the drill up in short bursts, while pushing this "flap wheel" down the port, creating roughness, and almost grooves in the port walls. He said this created the air lining, but also introduced swirl in the mixture, so that you would get a more even spread of the mixture in the chamber...