here is mine when on std springs and shackles, no sway bar, powerdown shocks and 2" body sitting on 35's
There was no way the tyres would foul the guards, maybe full lock on the front a little bit. Wasnt until i got longer shackles and a custom 3" spring lift that the fronts started hitting the front edge of the guard.
As for the power output.. Nice price too, how many K's on it? It should have 4.3 diffs. Will be shit house for towing anything bigger than a box tralier in 5th on 35's. MIne has 4.6 diffs and I tow car tralier in 4th most of the time, or put the 7.50r16 split rims back on.
Alot can be gained from upping the boost but this is up to you. If its only a toy block off wastegate, remove over-boost valve from intake manifold and adjust fuel accordingly. I did this for a while but moved away from it due to towing car tralier all the time and having the wrong radiator.
Hope this helps
Sterlo

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