Okay,

Today it was very hard to start, much cranking with foot to floor to
minimized flooding.  Started, barely  ran but 30 seconds later runs up to
3000 rpm and stays there.  Warmed it up for a couple of minutes.

Unplugged O2, Temp2, and idle control power plug.  Same hard to start
condition, but it went to 2000 and stayed there.  Checked the timing and it
was a bit advanced but steady, so I adjusted that.

Hooked everything back up and still hard starting, but went right up to 3500
rpm. Gave up.

This is not a problem with the idle control circuit.  What's left?  AFM?
ECU? Other?

About ready to have it towed to a shop where they can substitute parts they
have lying around, but that would be painful in so many ways.

Stuart