I can't go any smaller on the jets, the Holley kit only goes to 64. As for the distributor, it hasnt changed since I started this whole deal, and like I said before, it ran fine. The vacuum line is going to the correct vacuum signal on the carb, but it shouldnt be causing this problem at idle. I'm wondering if the powervalve is bad or something. Its always a bad sign when the engine is not changed when you screw the idle screws in all the way.