If you are going to port and polish the intake, why don't you go the whole hog and get it Extrude polished or whatever they call it.
Get your throttle body, inntake manifold, runners and head and take it to them. They then pump the stuff full of this "Gunk" which is abrasive and smooths the path in the direction which the air will flow.
I think its about $330 to do it....
BASS OUT