Used Diamond W2 Aluminum Heads Yay or Nay?

I thought about that because they are a great looking head but when I talked to IMM his recent 408 build barely made more hp than my Eddy head 408 made so unless I had those ported I wouldn't really be getting much of an upgrade in terms of power. As far as I know no one has taken these and ported them beyond how they come from the factory or have you heard of someone doing it yet?
How did your build end up ?