Hi Matt,
Your saga reminds me of an ugly story years ago when I had the head done
on a Datsun 510. The machinist left chips in the head that screwed up
everything. I was hoping that I'd forget all about that nasty experience.
Your readings are weird where #4 got worse with oil. Verify that the
compression gauge is OK.
You could try soaking bad cylinders with Mystery oil for a day or two.
(If it's an oil burner soak all the cylinders)
and repeat the compression test, in case there's a problem with the rings.
You could get lucky if it's some stuck rings.
(That would be better than doing the head over)
You need to try the Mystery Oil and start rubbing the Rosary Beads as fast as you
can!
Good luck, Bill
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