motohead77

I have a 2002 6.0 with forged ross pistons and stock bottom end. The heads I purchased are lq9 heads for $180, I was told they are basically the same as ls6 heads with a little less compression. They are being professionally ported and adding ss valves. I am definitely doing this build on a budget, I purchased last nite a chevy tahoe intake (compatible4.8,5.3,6.0)complete with injectors throttle body everything stock for a 2004 tahoe cost $150, and a brand new set of 2008 l92 6.2 liter injectors for $100 ebay item 260421307598. I believe they are rated at 47lbs. I dont know cam size yet it will be in a sbsc 81 chevy 4x4 but I will be high speed sand, desert no rock crawling.
I saw this gmpp cam for $304 its prob to much cam and I dont know if it would fit my application.
12571251
LS7
I: 211 E: 230
(1.8 rocker) I: .591 E: .591
121
Stock LS7 camshaft

or this for $459
88958733
LS Hot Cam
I: 219 E: 228
(1.7 rocker) I: 525 E: 525
112 Same cam as in kit P/N 12480033
Will this setup work? what do I need to change? I am shooting for 450-500hp
I need a harness that will work too. Any and all advice would be appreciated. Thanks in advance for your time. Colby