Found a C6 Intake Manifold Cheap..almost free. Would this fit on my 4.8 Tahoe (2003). I've searched around and think it may, but not 100% sure. I'm also thinking about upgrading to a vette TB and fuel rails. Will this work? Or is there something else better to do? I'd like to beef up the motor in general without going radical on it. So far I have a CAI and Flowmaster and looking at Long Tubes in the near future.