Ok, Thank you for the response! I have a manual trans in the car, which is what came in the car. The ECU I'm using is the mach 1 Ecu. The cams are the mach 1 cams. (although I've read the cams on the navi are the same, but to be sure, I used the mach 1 cams.)
To be clear, I meant that this car has tons of torque, but also revs well. It throws you into the seat much harder than it did with the 4.6. the motor sounds great, and runs great. Unless its cold, then it likes to stall on takeoff. (its actually hard to keep it from stalling. even if your taking off slow).
As far as the choke thoughts: not totally disagreeing to be clear. but the choke on the old carbs were meant to give you a richer mixture when the engine is cold. so more fuel, less air. What they suggested would increase air, but the mass air meter would compensate and just match the air/fuel ratio. thereby accomplishing nothing.
My hypothesis is that for some reason, the engine is running lean (or at least normal) when the engine is cold. when it needs to be slightly rich for a cold engine. But other that programming, which they have tried. I cant think of how to accomplish this..
I'm I on the right track? Or completely out of my mind?