Big Valve X Heads on Low Comp 72 340

If you are going through the cost and effort to change the heads, why would you not put in a new cam that can actually take advantage of the potential increase in flow? Seems like the definition of a half measure. Even with the lower compression of the 72 piston, I would think that the bigger intake valve has a lot more flow potential and a smart cam grinder can put together something that would work a hell of a lot better with it as well as any exhaust improvements you make. Biggest improvement is going to come from a better cam, better heads, and exhaust improvements.