'65 Lesabre 300- 4 bbl - cfm rating for the factory carburetor

65buick

Newbie
Does anyone know the cfm rating for the factory 4 bbl carburetor on my 65 Lesabre? PLease advise.
Thank you.
 
I had a look around, and it doesn't look like the info is readily available. It seems your car should have either of 3826S or 3827S on it. If you have the carb off, it would be possible to measure the venturi's and use the information found here to determine the cfm.
 
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