I have a GT40 upper and lower intake (non EGR) I plan to put on my 3o2 HO. I'm wondering how the engine will perform and what HP gains can I expect? I plan to install a new 70mm throttle body, and plan to keep the stock EGR, although I will have CEL code on my dash which I can live with til' I get a tune done. Any help is much appreciated. Thanks everyone!