As for an update, my distributor IS in fact idling "on the curve" so the first thing I will do is braze the advance slot up so I have about 24 degrees in the centrifugal advance. I have too much right now and the advance starts too early compounding the problem. The throttle gets cracked, the manifold vacuum drops a bit causing the vacuum advance to back off which lowers the engine speed which reduces the advance some more which basicaly, is like a house of cards. The RPM drops and can not come back on its own and within a few moments, it dies.
Jdawg, if you have a totaly stock spec DZ 302 distributor hooked up to ported vaccum, you need to read some of my other posts on the subject. The jury may be still out on the ported vs manifold advance but nobody will tell you the stock DZ 302 curve is the way to go. The emissions calibration will make the car run much worse than it would with a proper curve. If you look at some of the non-emission engines built with almost all the same parts, cam and specs, the 64-65 Corvette SHP 327/365 HP motors are almost exactly the same as a DZ 302 with .25 longer stroke. The ignition setup for those engines is WAY different because they did not have to worry about emissions back then. The distributor setup and curve is WAY better IMHO as compared to the stock DZ setup. I hope to be able to modify my advance today or tomorrow and test out the new curve and report back as time allows. I am working on preparing for a few job interviews next week so garage time comes second.