so far i have a gt 40 turbo, 38mm waste gate, manifold log i built, ls6 cam, 8.1l marine injectors, scorpion fuel rails, intercooler and piping, ls6 springs. built 4l60e. im trying to track down a 2 bar map from the cobalt ss. i know i need a bov. what about fuel pump? 255lph? i have a msd boost a pump, do i need it? i want to run some 5-9 psi then later maybe switch things out and go for more. high flow cats or no cats? yes i have done searches. tired of reading the hundreds of forced induction entries. some one said i should go with .660 lift springs and ti retainers and upgrade my push rods. i have pics in my photo alubum comment tips sugestions

 

so there are crap loads of guys runing turbos on there 03 to 05 silverados and nobody has any suggestions? no love

 

lol, someone will come along and answer for ya...turbos make me dizzy