Cannonball,
It has a vacuum spark advance that is hooked to the governor. It *is* sluggish and wants to miss/cough a little when the throttle is pressed. Also, it sounds rough at low idle, but smooths out as the revs come up. I doubt I have the timing close yet (close enought o run, though). Also, I may not have the distributor set in just right, yet. It seems to be close to time with the vacuum advance in about the 6 oclock position (towards the carb). I thought before, it was in the 9 oclock position.
John