318 Bolt-on Build?

I'm not very mechanically inclined. Been learning here and there so I don't know much about engines at the moment, but I am looking to change that.

I recently purchased a '72 Dodge Dart Swinger with a 318 engine & 904 transmission. Has the stock 2bbl on it. Just redid all the brakes, replaced all filters. New fuel pump, or so I was told. That's about as much as I currently know on the engine.

I'm looking to get a little more power out of her. Currently she has a fair amount but getting her up to freeway speeds quick enough is a pain, however once there she cruises well enough.

I've been told to swap out the intake and carb with a 4bbl, but other than that no clue.

Ask what you want, and I'll do my best to answer.