Also it would be solid roller for me every time on any of my builds since so far they have all been fairly rowdy to a lot of rowdy......not even gonna consider anything else
Go through this site on youtube: youtube nick's garage. Nick only works on Mopar engines and I have seen where he pulled more power with iron heads than with alu ones.
One more thing: Did you tell the cam manufacturer the flow you were getting? Does the valve opening go beyond the flow of the head? In other words does the valve continue to open past the max flow of the head?