Thanks guys. Actually went around the block in it tonight. Brrrrrrr is it cold out. We've had snow flurries all day if you can believe that. Snowing in Phoenix.
Put a new 192 degree thermostat in to replace the one that was missing. Still can't get it to warm up past 130 degrees at the thermostat housing with an IR Thermometer. But at least it stays running.
I need to recheck timing, check spark plugs, tape up all the skinned wires (while I look for another engine harness; anybody know where to get one?), replace the O2 sensor, weld in a new muffler, figure out why it won't heat up, flush the radiator, find a new power steering unit, fix the oil pan leak, fix the tranny pan leak, find another EGR control solenoid, etc., etc....
But hey! I stays running. Life doesn't get any better than this.
Tom