I've seen A LOT of posts about making HP with a 318-So why is it so ???

>68 318 came with suck piston depth and pathetic cams. 7.5CR and <.373 lift? Yes, it will run forever because it was overbuilt and undercammed. Zero deck pistons and a 4bbl intake with headers and a cam, your back in the game. Its just the same price to build a 360 nowadays, actually the 360 has a much larger piston selection, so its easier.