This had definitely turned out to be a mystery.
Purchasing a nice used #1112403 distributor from another member and will keep it on the shelf and at some point in the future will install. Hopefully, this will take care of the rotor alignment issue. Will also give me a chance to take a close look at the old distributor to see if I can figure out exactly what was wrong.
For now, the truck is running great with the cap twisted a little off the normal location. As long as it's running good, I'm going to leave it alone.
Thanks again,
Ron
