can you safely stack the edge juice with the hypertech with no problems...or would you have to upgrade your tranny??

Wouldn't quite call it safe, but you can stack it and run it hard till 4th, then you better let off, otherwise the trans will slip and limp. After using it for a while, it will start to degrade unless you do something about it like a new TC and shift kit.

with that stack, what can u run for levels?

im guessing that on your truck you can run the edge on full blast and the hyp on the stage 2 but remember in fifth you will limp the tranny with both of them. i ran the hot juice on level 5 and the predator on 65 hp with the stock tranny for about 35000 mile i raced and truck pulled with it and when i got it rebuilt there were really no major issues with the stock one. but to me after you limp it once it gets easier and easier to limp it again. usaually would limp at about 85mph