would like to know what they are. the numbers in the book that came with them said number where 7024182 . I did not find any numbers on carbs. thanks for help.
That number appears to be an early 4GC or 4 jet. They had tags on them with code but most tags have been lost through the years. Can you post a picture?
The 4GC is an early Rochester carburetor, not a Carter. https://quadrajetparts.com/rochester-fourjet-c-104.html
CFM will depend on primary and secondary throttle bore diameters. See http://wildaboutcarsonline.com/memb...ine_Modification_and_Tuning_Rochester_4GC.pdf Devon