Question on port matching

So is having the intake charge crash into the cylinder head. A lot of our point of views is dependent on how bad the alignment is and how much smaller the intake is to the heads.
If my intake port is smaller, I not meaning a lot, just a little.
Actually you never want the intake smaller than the head. They should be the same size but if you have to have a mismatch, the port in the intake needs to be bigger than the head, not the other way around. A smaller port in the manifold is a sure fire power killer.