need some help with selecting cylinder head Mopar 408

These heads here are getting great reviews. AIRWOLF............Less than Edelbrocks but more than RHS Heads and they seem to make MORE Power than both are capable of?

http://www.j-performance.com/index.php?option=com_content&task=view&id=59

[ame="http://www.youtube.com/watch?v=_AfyrlVkEdk"]408 Small Block Mopar with NEW AIRWOLF 220 heads 633hp - YouTube[/ame]