has anyone tried this place:
http://www.castheads.com/index.php
A buddy found them, while looking for a rail-type intake manifold for his vortec heads. Looks like they do a lot of custom work, as well as making the new look like the old, if you catch my drift. They will take iron eagle heads, and make them look just like 492 heads for various class racing reasons. Of course, they also do HI-PO work too.

Randy dose head work for racing i use him for my under cover class racing it is 1,600.00 for just the under cover port work and seat work with guide work that is all you get no parts no other machine work.

Hehehe, I'm trying to get away with "under cover porting" of the Mrs. all the time!

Cool service.

They're expensive but they can make a set of 492s pull like a freight train! Or so I've heard...