Quote Originally Posted by Playtoy_18 View Post
This is the rough draft i'm working on for it,if somebody wants a .bin I can get one as well.
And from searching looks like the 75mm is stock for the 5.3,so just need some direction on the cam.
For starters I would add a vss to that TH400. Other than that, first thing to do is raise and flatten y our idle timing and slightly raise the idle speed. On my cammed L31, I adjusted the throttle body minimu air rate screw to bring the IAC down to factory specs.