Thanks guys, my buddy has a really good scanner for OBDII , but he thought the 96 was still OBD1 as well. I'll have my buddy hook it up on his scanner.

There was a throttle stop under a cap at the top of the throttle that had some adjustment. I was able to drop it back to 1,000 rpm in gear. Its a little better. It also seems to be pretty inconsistent on the rpm, some times its better then others, I'll check the vacuum lines again.. This drive train has been sitting pretty much dormant for about the last year as the truck got built, about the only running its seen was to pull the truck out of the garage and turn it around. Running time may actually improve it, and putting new gas can't hurt either.
I put some new gas in it this morning and ran it out on the highway. The truck runs great on the highway. I did the key thing after the drive (about 10 miles). I'm getting a 12, 45 and 55. There is a dash light on for the air bags, the air bag sensors are on the work bench. I remember the 12 as a recent battery disconnect, and since it was just connected about 2 week ago, I'm pretty sure its no where near the 50 starts it takes to clear that code. I also remember the 55 is the end of sequence. I'm assuming the 45 is air bag related?
Gene