Welcome to the site!! First of all, the boost increase valve won't give you any noticeable power gain. You would see an increase is boost if you had guages, thats about all. I would look into maybe selling your juice and getting the newer Edge products such as the Evolution. Way better/cleaner tuning that the juice. Im sure others will chime in with some more ideas
CURRENT: 2006 Silverado 2500HD 4x4 crew cab (black), 20" chrome Diamo 16 Karat wheels wrapped with 33x11.5 Cooper Discoverer ATPs, 2" wheel spacers, Bilstein 5100 series shocks, Banks Ram-Air Intake, custom straight pipe exhaust w/5" tip, PPEI dsp5 tuned by Kory, Edge Insight moniter, 8k HIDs in head/foglights, Limo tint, 7" Pioneer Double-din, (2) Boss Phantom 12s in custom box, more coming soon...
SOLD:2002 CC/SB Duramax LS 4x4 LB7, Solid axle conversion, 14" lift, 20" XD Diesels (black), 39.5x16.5x20 Pitbull Rocker M/Ts, ATS E-power 160HP/360TQ Tune, Edge Attitude Moniter for Guages, Amsoil Custom Intake, PPE Boost Valve, Custom 5" Straight pipe, Limo Tint everywhere, HID 8k heads, Clarion 7" flip out, (2) 10" subs