74 Dart 318 to 383 Engine Swap Help

I bought my first car not too long ago, a 74 dart with a 318/904, i'm picking up a 383/727 later today for a steal and was wondering what i would need to do to make the swap work. Also, what'd be the major difference in power after the swap. I was going to just put a four barrel carb/intake and headers and exhaust for more power in the 318. But now with the 383 im assuming it shouldn't be too hard to get the power i wanted to get with the 318.