If you have an intake matched for your heads have the flange welded up to work, no Dominator as cast intakes as of yet except the M&M tunnel ram. What are the specs on your engine?
Here are some links to pictures.
Tunnel ram, cast Dominator top can be purchased.
http://1320techtalk.com/viewtopic.php?t=1362
Some modified cast intake pics.
http://1320techtalk.com/viewtopic.php?t=1799