[gr8shot]

well the hole you just dug for yourself by not knowing the limit of your truck limits you considerably. Since you already more or less sentenced your tranny to death... your best bet would be to save up for a tranny upgrade UPGRADE, not rebuild, and in the mean time do the supporting mods to get you ready for a tuner. And NO, your tranny won't hold the edge on high. Maybe like 1 or 2.

You need more than just a tuner to go fast and not kill your truck. You'll need exhaust, either delete your muffler on stock system, (cat too if you have one, but you shouldn't) or get a new aftermarket system. Then you'll need gauges to watch boost and egt's. Then I'd get your tranny done since you've already limped it, it won't hold as much power after the first time it gets limped. Do these things, and maybe a lift pump, and then...THEN you'll be ready to crank up that PPE as high as it goes.

PS, I'd stay away from EDGE, they've been having a lot of problems latley with their modules. Go with PPE, ATS, Quadzilla, or EFI Live (the ultimate)!!