Just bought the truck 2003 Dodhe 3500 6 spd & to my knowlege it has the tst 49,banks elbow,big head waste gate,& exhaust,fass 150 my problem is when I turn the tst on 3 or higher it surges after about 2500 rpm it hits about 42psi of boost fuel press reads a steady 14 psi I am new to the Dodge...