I'll be in the market for head/cam swap pretty soon, and I am looking for some good bang for the buck heads. Im just not sure what seems to be best on a 5.3, with the 3.7x bore since most heads outhere are for 3.9 and larger bores. I was looking at getting some prc 5.3 or prc ls6 heads from texas speed, or anything else in that kind of budget range. My budget is basically $2k for h/c, and another $2k for boltons and tranny mods. Im looking to get low 12s with the truck, and possibly high 11s with some N2O.

Truck details: 06 silverado 5.3 2wd ecssb,other than 2/4 drop its basically stock now. mods before or at same time as h/c swap will be Circle D 3200(already have, may go bigger), longtubes, ory, magnaflow dumped(probably a cutout), efans(stock), air intake, drag radials, 4.10s and true trac, and tuned via hptuners. I also plan on sparying at the track ocassionally (100shot range)