Originally Posted by Hotrod Lincoln
Unless you happen to have the triangular sheet metal tag that the carb came with originally, held on by one of the top cover screws- - - - -the one that usually got lost during the first rebuild, identifying a Rochester is a crapshoot

Some Rochester B carbs (including mine) had the model number stamped on the bottom of the throttle body.
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Rochester Carb model number

Phil
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1952 Chevrolet 3100, Three on the Tree, 4:11 torque tube
Updated to: ‘59 235 w/hydraulic lifters, 12v w/alternator, HEI, PCV and Power front Disc Brakes
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