Slant Six Carburetor Choices

One upon a time I did a mild slant six build using a Holley 390, Offenhauser Intake with Dutra Duals and I was really happy with the results.
I am contemplating another build but the world has changed over the last 20 years and the carburetor manufacturers are pushing customers toward throttle body injection systems.
Before I start asking folks about "which EFI system is better, FiTech, Holley Sniper, or one of the port systems like from Gil's Welding", I want to get feedback on the current carburetor options out there.
Would some of the spread bore options be viable? I know nothing about Weber carburetors, but can someone suggest a link for appropriate progressive 2 barrels?

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Thanks for your feedback