Has anyone had any success porting out the Intake manifold? I can get one cheaply from a pick-and-pull around here and I've contemplated getting someone to machine it out, smooth it down, and port match the head better. Has anyone gone into modding their IM? Any thoughts? I have a new ('10) Camaro, and I've helped many of the guys work on their manifolds, put plenum spacers and manifold spacers on to help with air flow and temperature drop, has anyone ventured into this world on Rangers?