A little late here but maybe I can clear a few things. First the spray bar is nothing new, and we all know the inconsistent nature in a one barrel design. The four barrel should be better, but I'm not sure what they want to accomplish with spray bars that an annular booster won't do better. As far as airflow you can get over 1150 CFM dry with a large 4150 and annular boosters. If you need more the 1200 twin blade is a great option with a 4150 footprint. I will agree they are a little more sensitive to tune in a street car, but not impossible. And on an 800+ HP BBC they make within 5 HP of a 1050 Dominator. The 1400 and 1600 versions are even bigger, but require a lot of manifold work to use on a 4150 manifold. On my SB2.2 the 1600 has been the fastest carb I've run, and I have run up to a 2.800 throttle blade carb that was only .04 slower. On big blocks in the 1000-1200 HP range the 1600 is tough to beat, in the end manifold design has a lot to do with what works best and what the engine needs for distribution.

As far as who came up with the design, there is more to the story. From the 70's, and I've had one in my hand...

[img]https://imgur.com/icOGYmG[/img]
[img]https://imgur.com/S4gA1Jo[/img]
[img]https://imgur.com/9hzzyRc[/img]