Ok guys, just a little update for those who are curious. I've been tuning on this set up the past couple days and at least on the dyno it seems pretty good. My baseline pull on my stock 5.3 out of an 02 Avalanche was 216 whp. I put the 02 Z06 cam in and with a little extra timing I've got 278 whp out of it so far. No knock yet and it's a little rich at 12.8 so there might be a little more to squeeze out if it. Pulls done on a Mustang dyno, tuning with HP tuners. Sorry, crappy cell phone pic.
http://farm7.static.flickr.com/6197/...a4d8aed6_b.jpg