It lives, again. I torched the oxygen sensor and spark plugs and wasn't as afraid as before to heat them up a little more. It fired right up and I was able to take fuel out easily.
Some timing adjustments are in order and it will be stable at 14.0-15.0 at idle.
Disaster avoided. My new plugs will be here tomorrow anyway so after I've got a little bit of drive ability done I'll throw those in.
