Not sure what you mean by "it hangs with the vaccum advance distrubutor". It has no connection what so ever other than a hot engine and base timing set a bit too high. Do you have good luck when it's cold? Does it show these signs when it's hot? Always check your starter drive to flexplate/flywheel tooth clearance. Too tight, and it will bind. Aftermarket rebuilds are not cut out for this motor. With the sound investment you made, I suggest a gear reduction starter. Do some shopping and you'll get a good deal.