Evidently, the rockers ain't cheaper.
Intakes are relatively cheap.
Most W-2's have both exhaust patterns. I have 2 sets now that have both and one is the closed chamber head.
Same for same, cast iron makes more HP than aluminum.
Again, I don't see how the big mouth fits a market. Except you can use your intake. And the quickest way I know to kill a good set of heads is an unprepped intake. I have as much time in my intake as I have in the heads!!!
I just don't see it. But Dave has to make money. And everyone hates Indy, myself included.