Your present Mustangs computer is not programed to run the blower upgrade, so no this would not work.
Further more if you transmission is not capable of holding the HP upgrades you plan to do, you will just burn your transmission up.
Truthfully, for @ $500 you could simply change the rear differential ring and pinion gear to a 4:11 ratio and have lightning bottom end speed with your present HP.
Sorry but your present computers air/fuel mapping limits is for non-asperated engines.
Try learning about Mustangs at : www.ClickClickRacing.com