Wiring help

Ok, just got my 2 chrome 450's, 12 gallon tank, switchbox, and adjustable pressure switch from suicidedoors.com. Anybody else running a setup on 2 450's and a pressure switch like this. This is my first bag job and I need to be headed in the right direction so I don't fry somehthing. Anyone able to send me a diagram or somethin? Appreciate it!