It would have been 52, then, that they had a WCFB because I'm pretty sure Packard had it in '53.

Prior to that, in 40-41, the Buick used two carbs (large one barrels?) and called it Compound Carburetion. That gave 165 hp, whicj probably tied for highest output, putting it in the same range as an big Chrysler or a Cadillac