Max Wedge Heads ??
Not to sound like an ***, but it only took me about 5 minutes to dig up those pics off the internet last night.
Go here:
http://racehemi.maxwedge.com/topics/heads.php
It has pics and info on all the Max Wedge heads. And like my edited post above, the Stage 3 heads have the rocker shaft stands cast in along with 6 bolt covers instead of only 4.