malfunction

Ok, so here it goes. I put a 4.6 modular v8 together and put it in a 2002 ford mustang GT Jack Roush stage 2 five speed manual. It will not start... I have checked the voltage on the throttle position sensor. .986 when closed then 4.66 at WOT. It has a new fuel pump, a new MAF, it has a new Fuel...