Trying to get this truck running

[softballnrd27]

02 6.0, computer and harness modified by me; th350 trans ASA cam. It was still running in Jamie's truck before he pulled it out and sold it to me so the internals should be good. Only things that changed are: DBC, no emissions, no VATS, no EGR, Only using front 02 sensors.
So Jamie and I gave it a shot today and tried to get the tune in and the truck running but we ran out of time.
Maybe he will chime in later on so he can tell everyone exactly what was happening but I will give it a go. All the sensors were working and giving him some readings that he said were good to go except the map sensor. It was reading at 102 and only dropped down to 95 at the lowest. He looked at some logs and most were reading 40-60. We pulled the map sensor and the orange rubber stuff around the male end was chewed up and the sensor was dirty. I got a new sensor and tried to fire it but the same thing was happening. Now that you have the back story here is what it is doing:
It will turn over with ease but will not "fire" w/o holding the throttle open some. When it does fire it is rough and it backfires like crazy and reaks of gas. If you have any ideas on what/where to check please let me know bc I want this thing running SOON.
Here is a short video:
http://s154.photobucket.com/albums/s...-51-52_765.mp4