I have a 71 318 that I am giving to a friend for his barracuda and was wondering what thoughts people have on a nice build. He is trying to build this on a tight budget. Should he replace the heads with some 360 heads, what kind of hydraulic cam, and would an RPM air gap with a 650 carb be a good way to top it off or something else. He isn't looking to make huge power, just something better than his stock 273 2 barrel.