I did talk to Cliffors and they said their intake wouldn't work with Fentons with out modification.
I expect all that is needed is some shaving, but I just wondered if anyone had tried.

How will an offy dual intake with 2 staged 2bbls perform at low rpm. My single rochester does pretty well off the block so i don't wanna lose that. I thought I had a line on a Clifford intake for cheap but the guy changed his mind so it seems like the offy 2x1 is a cheaper option since 4bbl carbs are pretty expensive. I want trouble free driving though so how high maintenance is a 2x1 setup?