so, as i've mentioned a few times earlier, i'm wanting to get a cam sometime before i leave for OTS in june. after talking to a few of y'all & some guys at Comp Cams, Texas Speed, & Thunder Racing, i think i've narrowed it down to a couple choices.
the specs for my truck are:
1999 NBS Sierra RCSB 4x4
2001 5.3 LM7, 1999 NV3500 trans
3.73 gears, 265/75-16 tires (changing to 285/75-16 when these wear out)
airaid CAI (filter & tube), Mellowtone muffler (similar to flowdisaster 50HD) - 3" in/dual 2.25" out the back
possible 243/799 heads later on down the road, but that still remains very undecided
i'm basically just looking for a bigger curve, mainly low & mid gains - 90% of my driving is under 2500rpm. any top end gains are just for kicks & giggles and showing off
now, on to the point of my post...
i know that some LT headers are a great addition anyway, but i don't know if i want to do them or the cam first (leaning more towards the cam), so i'm wondering if any of these will be fine to run with factory manifolds for a while. also which would y'all recommend based on real-world usage (feel free to add your own suggestions as well)
comp 212/218 522/529 114*
tsp 214/218 522/529 112*
tr 214/230 601/575 117*
they said the cheaTR works great with factory manifolds, but from a little reading, i'm leaning more towards either the comp or tsp.
thanks in advance for y'all's input!