Hi, I just bought a 1999 Dodge 2500 Sport 4x4 off a buddy of mine from work and it already has a 4" exhaust, and a Edge Juice w/ Attitude. He also gave me a Diablosport Powerpuck that came with the truck when he bought it but then took it off to install the Edge. I was just wondering if it is possible to stack these programmers? The tranny has never been built up so I dont want to go to nuts with it. Also does anyone know what fuel pressure should be i am running about 9-10 lbs at idle and at WOT with level 5 about 2-3PSI. Thanks Alot, I am used to my old 12 valve this is all new haha.