Revell's (temporarily unavailable) '29 Ford Roadster includes six carburetors with individual air cleaners.
Revell's (temporarily unavailable) '30 Ford Coupe has a very nicely detailed tri-carb setup with individual air cleaners and a Chevy sb intake.
Revell's '49 Mercury Coupe and Woodie includes a different style of carburetors, but also with individual air cleaners
Revell's '46 Ford Covertible ("Pro-Modeler" and "Goodguys" issues) includes three individual carbs with a single oval air cleaner and a flathead intake.
In 1/24-scale, there's Monogram's '30 Ford Touring and older issues of their T-bucket