Tunnel Ram on a 383

I know that the 383 tunnel Rams aren't produced anymore, but there are enough out here to be had. I visit Carlisle a few times a year. Hopefully I can find one complete with carbs and all. I am really glad that their is a lot of interest in this post. I want to do as much research as I can to be the combination right. I would hate to put it together and than be disappointed. Now the questions:

Will I be ok with the stock heads and rockers? I will get them ported and have a valve job done on them of course.

How much should I bore it? Or do I even need to?

What about the Pistons and rods? Can I get away with stock and the right cam change?

Would headers make a huge difference over the HP manifolds? I don't want to spend the money for under chassis BB headers if I don't have to.

This is not going to be a strip car by any means. I just want a cool looking street car that has some balls, because let's face it, something sticking out of the hood always looks neat :-)