Originally Posted by skyhighsami

This is a long read but I might have some good information, or it might be all BS but I figured I would share my experience. If you go Procharger get a Stage 2 kit with a stand alone blower belt, Stage 2 intake, intercooler and BOV and either a D1-SC or D1X. I had a D1-SC on a 5.3 with a cam that had the Stage 1 bracket, horizontal intercooler, standard bypass valve, and intake. It was pullied to make 13 psi and would sling the 6 rib serpentine belt off. I took all of it off and sold it because to fix it would have cost alot more than selling it and starting over. The truck had a pretty mild Texas Speed cam in it, Fast LSX RT 102mm intake, 4L80E, 3200 Vigilante converter, 4.11 gears, headers, no cats, and the D1-SC kit I mentioned. My Trailblazer SS with a 416ci LS3 that ran 11.8s consistently NA would out run the truck. If I had kept the Procharger or was building a Procharged setup I would build a forged 370 or L92 with forged rods and pistons with a D1X with a dedicated 8 rib belt pullied to make around 14-16psi with a good intercooler, intake setup, BOV, cam spec for it, CNC 317s on a 370 or CNC LS3 if a L92, 1 7/8" or 2" headers, 3600 or so converter. The 3200 in my RCSB wasn't enough stall and was too tight. DO NOT TRY AND SAVE MONEY ON SUSPENSION OR TIRES AND WHEELS. Spend the money there before you start trying to make power because if you don't you will be able to spin easily at 40-50mph on dry pavement.