will J heads work on a 318? And many many more questions.

The port I am talking about isn't a water jacket. But if I can put the gasket up to it and mark it so that it is the same size, I should be fine. As for the intakes. I really like the look of the stealth and would prefer using it over the edelbrocks. I am using an 8 3/4, so it's not like it's that big of a pain to change rears. As for the car. I don't plan on running the 1/4, I do plan on driving through the many canyons we have around here though. :)