Tom Getz Posted August 6, 2014 Share Posted August 6, 2014 The carburetor that I have on my 1923 Buick is an after market Zenith #4512900. I am trying to find out if this would be a correct replacement for this 243 cubic inch engine. It is presently running lean, and I would like to know what is the correct CFM spec for the engine, and what would be the CFM for this Zenith that I have. Link to comment Share on other sites More sharing options...
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