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Help with Carter AFB Carb numbers/ CFM

Discussion in 'The Hokey Ass Message Board' started by desertratrodder, Dec 7, 2005.

  1. Hi, anyone know what numbers on the AFB/ Edelbrock 4 bbl carbs will tell me what CFM they are?:confused:
    Or if thats not the way to do it, then what to look for.
  2. AHotRod
    Joined: Jul 27, 2001
    Posts: 9,646


    Nope ! ... the part number has no relationship to the CFM ratings.

    What part number do you have?
    Carter AFB's start with 9500 - 9700 series
    Edelbrock carbs start at 1400- up.

  3. squirrel
    Joined: Sep 23, 2004
    Posts: 37,039


    not so...on the Carter aftermarket AFB carbs, the 9625 is a 625 cfm, as are the carbs with similar numbers (9636, etc)

    The cfm was in the part number....but that is the exception to the normal carb numbering schemes you'll see.
  4. Duster
    Joined: Nov 19, 2004
    Posts: 219


    Edelbrock 1405/1406 is 600cfm. all I know.
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  5. I have 1400 1404 edelbrock
    4F4 9637S Carter

    I have to dig out the others
  6. Ford Fairlane
    Joined: Aug 22, 2004
    Posts: 178

    Ford Fairlane

    The 1404 Edelbrock is a 500 cfm manual choke universal carb
    The Carter 9637 is a Ford replacement 625 cfm with emissions outlets.

    On the old 9000 series Carters
    9625 GM linkage carb, 9635 GM linkage with emissions hookups
    9626 Mopar linkage carb, 9636 Mopar linkage with emissions hookups
    9627 Ford linkage carb, 9637 Ford linkage with emissions hookups
    all of the above with automatic choke.

    The Carter Comp. Series carbs (universal linkage carbs, all with manual choke or no choke) had a different numbering system.

  7. the 1404 has been answered

    the 9637s is 625 CFM
  8. Thanks!

    Whats the 1400?

  9. 600 CFM
  10. ewoky409
    Joined: Sep 9, 2009
    Posts: 11

    from spokane,wa

    Hi,Can someone tell me for sure if the Carter AFB 2651S 4 barrel carburetor is 625 CFM or not?And if not,what is the CFM?
  11. Carter AFB 2651S is original to a 58 Chrysler 300 with a 392. Don't know of any reliable info on cfm for factory carbs.
  12. carbking
    Joined: Dec 20, 2008
    Posts: 2,013


    Carter did NOT publish CFM information on most of the O.E. carburetors produced before the mid-1970's. The carburetors were flowed for A/F ratios under various vacuum values, and I have the factory flow tests, but CFM generally was not tested. One O.E. AFB that was tested for CFM was the 3636s (Pontiac) that flowed 939 CFM.

    As to the A/M Carters:

    manual/no choke

    4758, 4761 - 500 CFM
    4759 - 625 CFM
    4760, 4762 - 750 CFM

    electric choke models

    9400, 9410 - 400 CFM
    9500, 9501, 9510, 9511 - 500 CFM
    9625, 9626, 9627, 9635, 9636, 9637 - 625 CFM

    There are some other numbers after F/M started building clones that are marked Carter, but have not bothered to look up the specs on these.


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