Hello to the most knowledgable engine message board i know of!

My '83 truck had been sitting since late november thanks to a defective "remanufactured" dizzy from NAPA, my man D.I. sent a new dizzy and it started right up. i've been working on dialing in the advance and i got some NGK UR5's today, my truck really responded to them and runs and idles much better. i had some Autolite 26's, and i noticed that the old plugs in cylinders 2, 4, 5, and 6 had motor oil on them! maybe that was causing the misfiring and pinging in 2nd and 3rd gear when i floored the pedal. i looked inside the PCV hose and i didn't see a lot of oil. what can cause oil fouling, blown head gasket, bad valves, bad rings? more things then that?

You could get some oil fouling from the valve stem seals leaking if they were old and the valve guides were a bit worn...

You can run a hotter plug like the UR-4 and see if that clears it up (hotter plug can 'burn up' that stuff), but you may need to rework your 'tuning' a bit (fuel, spark)... but this may be a temporary/'farmers' fix for permanent problem...

Glad the distributor worked out for you...

-D.Idiot