Mod Man Intake Dyno numbers?

Yeah, I saw that dual quad setup. The prices on these parts still just baffle me. A dual quad for cheaper than a single, a modular cheaper than a single, two different single quads for wildly different prices, etc. Indy sells the intake with your choice of one top plate for $400 on their catalogue, haven't really even seen it anywhere else, but I haven't looked too hard. I was surprised it was even that low. They have some package deals too, and if you buy piecemeal it looks like it can get pretty expensive fast. I thought about that dual quad setup for the price tag, but I'd have to pick up another carb, so it would cost me more in the long run.