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[quote=98Dak408;134647]When porting heads and an intake manifold, you want the intake manifold port a little smaller than the head port to prevent turbulence from the airflow running into a possible protrusion of the head. There is some amount of play/alignment differences as the intake manifold fits onto the head and this prevents a mismatch as the intake is bolted to the head. The same should be true for your blower tube mating with your TB. You can port the blower tube a bit but make sure it is a little smaller than the TB inlet.
Well Said! Too many people try to match them up, and in the real world it usualy doesn't work. You can also flair or chamfer the very end.
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