Porting only intake manifold

I recently bought a ported intake manifold to replace my old manifold. I didnt tihnk about it till afterwards whether or not it would be a good idea to have only the intake manifold ported. It's been ported 3mm all the way through, i need a response fast plz..

I did the same thing on one of my old cars and nothing ever happened. it wont do any damage but you just wont get the benefit of a ported motor cause your heads and exhaust will be stock size.

so what all else would i have to prt to get that benefit?

Well the exhaust and intake ports on the heads would have to be ported. and the header too. (well I think in that case its easier to just get aftermarket hearders) and that should do it.

Porting is just widening the interior diamiter by grinding it down right?

ok thx

Porting is just widening the interior diamiter by grinding it down right?
yup.