Okay, here's what I've done with my Saturday.

1. Transfered Idle Stabilizer Control Unit from
   good running 87 GL to Billy Bones.  No Change.
   GL runs good with ISZCU from Billy.
2. Changed Idle Control Valve from GL to Billy.
   No change.  GL runs good with Billy's Idle
   Control Valve.
3. Changed oil and filter.
4. Installed new set of Bosch W7CC plugs.
5. Disconnected the O2 sensor.
6. Transferred switch under throttle body from
   GL to Billy.
7. Transferred AFM from GL to Billy.
8. Started engine.  Ran great.  Drove to Sears to
   get a compression tester, ran great. I thought
   problems solved.
9. Checked compression.  #1 = 130, #2 = 130,
   #3 = 125, #4 = 135.
10. Rechecked timing.  Perfect.
11. Decided to switch AFM back.  Would not start with Billy's original AFM.  Reinstalled AFM from
GL to Billy.  Ran great. Thought problem solved.
Not so.  After idling for about 10 minutes, Billy
started loading up again.  Smelled terrible.
Now will hardly run even with all of those
perfectly good parts from GL.  O2 sensor is still
disconnected.

I'm not defeated, but definitely embattled.  With
your help, I can solve this problem.

Thanks to you all for everything.

Warren Lail
88 Westy "Billy Bones"
87 GL (cannibalized, not running at present)