More mods = More H.P.

[SoulKeeper]

All my mods are listed below. I was wondering what injectors come factory with the 2000 GT 4.6L 2V Engines? I was looking into getting either a Pro-M or C&L 85mm or 87mm Mass Air Meter. And if so, would it have to be calibrated for my injector size? And is the 70mm T.B. I have big enough or should I go bigger? Also in the June issue of Muscle Mustangs and Fast Fords, there is an article about porting the stock 4.6 2V upper intake box and picking up 10 H.P. and 14.9 lb-ft of torque. I want it fast enough to beat the Camero's and other invites that might think I cant run with them. Gears are in works also. 3.73's are the choice of drug for that. And what about Headers? What kind and what size? I would like to get the most air flow as pissible without getting a supercharger. Any suggestions are always appricated. Thank you.