What is the budget? Guessing GM factory offerings aren't what you are looking for.
I think it is time to find yourself spending a couple of days reading up on everything about those cars. I am more than willing to answer questions, but it feels like you have asked several questions and didn't really take the advice to heart.
What cam are you installing? Or having installed?
2008 Trailblazer SS
LS2, AWD, Red Tint Jewelcoat, and Eff'ing dubs
Yank PTB3600, Kooks 1 7/8" LT's, 4" Fenderwell intake, LS1 E-fans, Magnaflow, LS7 TB, Sonnax shift kit, tranny cooler, tune.
Lowered, HID's, tinted.
1999 Pontiac Trans Am WS.6 #1747 SOLD
531.1 RWHP 481.3 FT/Pounds
Last edited by Mr. Luos; 04-27-2013 at 11:20 PM.