[Trackrash]

You should definitely match the ports, manifolds and the carbs.

You might want to do some research on port size, porting, and port velocity. I have ported the heads on most of my cars over the years. It is all about having all the elements of your motor working together in harmony.

There is a lot of how-to info out there on head work.

You mean polish like a mirror? The benefits of that are debatable.

There are a lot of shops that will take your money and do porting and polishing. I doubt that you would get your moneys worth going that route.