Cool, I'll be running a very similar engine setup. Rebuilt 2005 LQ4, Lunati Voodoo 60511 cam .567/.567", 222/228 dur@0.050", 113 LSA. mated to a 2004 GTO 4L60e tranny. My exhaust will be ceramic coated Sanderson/JTR headers, Dynomax UltraFlo mufflers, and stainless mandrel bent 2.5" dual exhaust all the way out.
For the time being, just to get my car going, I'll be running a 2004 5.3 w/stock LS1 cam.
I am guessing since you have a stock style hood you are running a LS1/LS6 car intake?
Any track times for you yet, with or without the mods?