A 1050/4150 AN carb would work great. Ultimately a 1050/4500 would be the best choice for all out. I’ve ran both on my 511 as well as a vacuum and mechanical six pack. The 4500 was awesome. For everyday my 1050/4150 would be hard to beat. That’s on a full weight b body. Single plane is a way better choice on the big motor. I only run the six pack (dual plane) because I’m after the A12 look. Big engines take a different thought process then normal CI stuff. None of my carbs are out of the box. I spend a lot of time and effort to build and dial them.
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