I missed the last couple posts on this thread. Keithc8, thank you very much for the incredible offer! Wow! Hope I never have to take you up on that.
POP sent me new adjusters and I figured I would throw them on there just to see if they did the same thing, as I suspected the last ones hadn't been hardened properly. I checked for good oiling at the cup of all of them (pre oiled with drill), changed
oil & filter, added GM EOS treatment suggested by my builder and George Anderson. About 100 miles later and it's still running well.
Was done for in about 5 miles last time, so I think I might have this thing beat.