Norbs,
A stock one that is welded up will fit them and I haven't tried the Edlebrock (carb unit) but have heard they will bolt on. The best one to get is the Brodix BD 90 V6 I think that is the number but I would have to go out to shop and verify that number. There are not a lot of intake options for the Syclones. You could always have one built but that is BIG bucks.
Bob