Bill, I replaced the distributor cap, points, and condenser and that seems to have done the job. I ran it for quite a while out there and was not able to duplicate the problem. It runs very nice right now and accelerates smoothly. The old points were pitted somewhat. Time will tell whether or not I've solved the problem.
One thing I do notice is that the engine seems to have a very slight miss every now and then. You can barely notice it. This is something that has come and gone with this truck for some time. When the miss happens, the ammeter does a very slight jump toward the discharge side.
Thanks for the help.
I forgot to mention that I have a coil that is meant to be used with an external resistor.

Last edited by joeflanagan; 08/27/2012 4:19 PM.

1956 Chevy 3200