trying to pull ponnies with little cash

the engine thats in the car now has a 2bbl i dnt realy want to go out and buy another engine since i haved a complete 318 thats all tore down just needs to be put back together i dont want to put it back stock cause i want some power but not to much. unlike a thought i had with a early 70s dodge pickup since im in cali nd i hate smog:violent1: