Port match intake/gaskets/heads or not

I personally wouldn't bother. I know of 2 well known engine builders known for making serious power that say don't bother porting manifolds. One stated that he saw a manifold murder intake flow once bolted on but didn't affect power like he thought it should. I remember Larry Widmar saying to keep the intake manifold smaller by a millimeter and I can only assume that that helps the fuel that's on the walls get re entrained into the airflow.

Large intake tracts encourage reversion messing up carb signal and ultimately cylinder filling.