360=500hp

Easy..rev it. W series heads, compression. Almost any level can be gotten from any engine, but the higher the figure, the more you need to compromise one thing for another. as an example..bigger port heads you may give up some low end, to get peak power. High compression, you give up pump gas...etc. Perhaps know what you want to accomplish with that car/engine would be a better place to start. Keep in mind, it's not a 360 any more with a 4" crank...