I just picked up a dual carb intake for my Chevy 250. It came with 2 Rochester 1 barrel carbs. They need to be rebuilt. I don't know the year of them. Their is supposed to be a ID tag on them but they are long gone. Can anyone tell me what year they are? Here are some pics. Thanks, Todd
Their are 2 different numbers that I found.
4525 is stamped right where the baseplate meets the intake
57 is stamped where the baseplate meets the carb body.