Okay, so the whole problem was vacuum related. So the rebuild kit came with like 100 gaskets, and I didn't know which ones I needed. I accidently used a gasket against the intake manifold that allowed air to seep in while the engine was running and fuel to flow out after the engine had stopped :- . So I took that gasket off, laid the metal plate on top of the manifold and voila - the holes were covered, put a thin gasket on top, bolted carb down and she started and ran like she was supposed to, except for she idles lower and lower over a period of about five minutes until she just stops on her own. Anyone have any hints? It's not quite like fuel delivery problem, cause it's real slow, and it's kinda new to me.

On the note of Holley vs. Rochester, a couple comments: Since this project is more to get the truck running again than to completely restore and fancy it up to be a street performer, and since it's being done on a college budget, and since I have two quadrajets to work off of, I didn't figure it was worth it to go that direction. Also I heard that Holley's are pretty delicate and don't like being backfired through, and since I've already backfired about half a dozen times, , didn't want to try my luck. Thanks to all who replied, now it's on to my brake issue!