Aluminum heads $ per HP?

I ran 340 x heads for decades and love them they were always an overachiever with a little bit of work and a good set of Springs they're great head as is the Jays and the 308 Etc, but there is no doubt my Pro Comp aluminum's are a upgrade I can run more timingwith the smaller combustion chamber without detonation something that I had to watch on my iron heads, all new, much lighter, and better flowing. It was hard for me to move away from my X heads it would just cost too much money to bring them back and make them competitive to an RPM or a pro comp head. Plus it just gets harder and harder and more expensive to find someone who can really do justice to a set of iron heads