No vacuum advance on anything with a decent overstock cam, because, well, the vacuum signal is completely different from a stock configuration and they don't work. Mechanical advance set up to get some timing in it early.
Could it stand to be fattened up some? My temp gauge would show it if mine got lean.
160 stat or none at all. Good fan/shroud assembly on the back of the radiator. Pushers are in the way of the air getting into the radiator.
If the results don't match the theory, change the theory.
