Re: if i got a new throttle body....
If you are getting a new TB, I'd get a taper ported 85mm Modern Muscle CNC TB, and put on a BT catch can at the same time if you do not have one. The 85mm Costs just a bit more than an OEM TB, and no tuning is needed, as with an 87mm. Just unhook the battery neg terminal while doing the swap so the ECU resets. I replaced a clean stock TB with one, and it drives noticably better, more low end torque and better WOT response.
2006 GC Overland QD II
5.7 Hemi, Modern Muscle 85 mm CNC ported TB, Apexi super voltage stabilizer, Billet Tech. Catch Can, Koni FSD shocks/struts, SRT8 sway bars, Cooper Discoverer SRX 255/65/17, Amsoil fluids, Diablosport Intune CMR tuned by Hemifever tuning.