1973 Plymouth Valiant How to restore?

I have a 1973 plymouth valiant that I bought for 900 dollars about two years ago.  I am just now going to be able to park it and start working on her.  She is in decent shape as far as the body, except she has a rusted roof and a banged up fender.  I am planning to restore the car to look original, but the motor is going to be built up.  I am looking for anyone who can tell me where to find what one looked like completely original.  I am also trying to figure out what to do with the motor.  I am going to leave a 318 in it, but I want to be able to push at least 350 hp.  I am trying to find out what parts I need to make it do this, but also I still want it to be able to run on the streets.  If anyone knows about rear ends and about the top end parts on the motor it would be great.  I know how to build the bottom end, but when it comes to top end, I don't know that much.  If you have any suggestions email me at hatedbyliving@yahoo.com

I'm working on a 1971 Valiant right now. As far as what one looked like original, you should try Google images and look for the sales brochure from that year.

Jegs is a great source for Mopar performance parts. Since the 318 is pretty common engine, you shouldn't have any trouble finding parts for the engine.

A good place to start is the simplest: Fuel, air & exhaust.  
-Jeremy

1971 Plymouth Valiant, 4 Door Sedan

225 Slant Six, Three Speed

Florida Car, 64,XXX Miles