Well heres an update on the truck:
Battery had about 50% charge, pulled the plug off back of ignition switch and used a couple of jumper wires.
Engine started and ran rough, #1 and 6 plug wires were reversed, fixed that after a little backfire that blew a hole in the exhaust pipe.
Running smoother now, no oil smoke
Burning really rich, no black smoke but can smell fuel, tried adjusting carb, didn't help much
ran it for a couple hours while messing with it, good oil pressure, no over heating or anything too bad.
The worst thing on the truck I found is no reverse, trans goes into forward gear fine and doesn't seem to slip, but nothing in reverse
The really bad thing is now my wife thinks I should sell my 92 GMC!
I tried telling Her I have more into the running gear and wheels then I could get for it but She doesn't seem to sympathetic.........