I actually ran a custom dual vented valve cover on my speed6 which went to a catch can. I'll post some pics when I get home . Keep in mind since the car was turbo this was done mainly to relieve crank case pressure under high boost . ( never got the big turbo installed but ran flawless with my little baby turbo!)
Edit: there are more but here are a few !
http://img339.imageshack.us/my.php?i...edc0484yn5.jpg
http://img82.imageshack.us/my.php?image=gedc0488du4.jpg
http://img129.imageshack.us/my.php?i...edc0485rt9.jpg
http://img82.imageshack.us/my.php?image=gedc0489zv3.jpg
http://img80.imageshack.us/my.php?image=gedc0483rh8.jpg