Last time I checked, JLT doesn't make a CAI that will work without a tune. Without a tune, your car shouldn't even start, much less make a pull.
Nevermind, I see in your sig that you have an SCT tune in there. Canned tunes are OK, but a custom tune should yield you a bit more power
Just for reference, my car, with the same mods as yours, made 435/400 after Gearheads worked their tuning magic.
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