[dmjlambert]

I did what HO455 suggested and ran wires directly to the power input terminal of the distributor, and to the metal distributor body, and attached those to a voltmeter in the cab so I can monitor power at the distributor while driving. I do receive steady normal voltage to the distributor even during these tantrums, and this confirms no ground or power problem. So, it is either inside the distributor or inside the carburetor. I'm going to start with the carburetor and leave the distributor alone for a while, and resist the urge to just pull both and refresh both at the same time, so I can know for sure what fixed it. I will consider it a good time for carburetor tune up anyway, even if I put the carburetor back on it and problem is still there. Then I will move on to the distributor.

I don't have a tach or vacuum pump. I may get a vacuum pump, I'm sure it will come in handy. I have a stock air cleaner. I will let you guys know what I find. I appreciate the tips and comments.