Ok so I'm still having running problems, Solved the vac leak had a cracked hose. It's a stock 5.0 I put a B303 cam cuz it was laying around, I was at TDC when I did the swap new timing chain The timing marks where bang on. My car starts and then shuts off but if you hold the gas for a bit it will run. As it warms up it will idal at 700 to 1000 RPM's. then after a bit it will revving up and running like . Then it will just shut off my is around 20 if you put it around 2 or 3 the idal is around 400. Anyone have any ideas in what I can do.