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Old 09-19-2022, 10:29 PM   #8
Dead Parrot
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Join Date: Aug 2012
Location: Oklahoma City, OK
Posts: 2,495
Re: Carburetor Recommendations for 250 inline 6

A GM carburetor book lists a 1ME Monojet for a 78 250. It shows different numbers for light duty and heavy duty versions.

The one you have is missing the choke stove cover. Looks like that one pipe is meant for one side of the heat stove instead of being a vacuum source.

Not sure when they switched from a exhaust heat source to an electric one.
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