Dual quad info

I'm not saying you can't run a progressive set up on a tunnel ram but I think the design will make the front two cylinders way lean. Now you could jet up the primary side on the rear carb but I think 1 to 1 works best on a tunnel ram. That Chevy 409 had a carb base gasket leak and the front 2 were so lean the engine was skipping. And you can certainly fab up some linkage no matter which way you go. Good luck.