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Old 12-07-2005, 05:39 PM   #1
desertratrodder
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Default Help with Carter AFB Carb numbers/ CFM

Hi, anyone know what numbers on the AFB/ Edelbrock 4 bbl carbs will tell me what CFM they are?
Or if thats not the way to do it, then what to look for.
Thanks!

Last edited by desertratrodder; 12-07-2005 at 05:40 PM. Reason: .
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Old 12-07-2005, 05:45 PM   #2
AHotRod
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Default Re: Help with Carter AFB Carb numbers/ CFM

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.

Glenn
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Old 12-07-2005, 05:52 PM   #3
squirrel
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Default Re: Help with Carter AFB Carb numbers/ CFM

Quote:
Originally Posted by AHotRod
Nope ! ... the part number has no relationship to the CFM ratings.
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.
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Old 12-07-2005, 05:58 PM   #4
Duster
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Default Re: Help with Carter AFB Carb numbers/ CFM

Edelbrock 1405/1406 is 600cfm. all I know.
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Old 12-07-2005, 06:01 PM   #5
desertratrodder
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Default Re: Help with Carter AFB Carb numbers/ CFM

Quote:
Originally Posted by squirrel
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.
I have 1400 1404 edelbrock
4F4 9637S Carter

I have to dig out the others
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Old 12-07-2005, 06:29 PM   #6
Ford Fairlane
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Default Re: Help with Carter AFB Carb numbers/ CFM

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.
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Old 12-07-2005, 08:06 PM   #7
36-3window
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Default Re: Help with Carter AFB Carb numbers/ CFM

Quote:
Originally Posted by desertratrodder
I have 1400 1404 edelbrock
4F4 9637S Carter

I have to dig out the others

the 1404 has been answered

the 9637s is 625 CFM
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Old 12-07-2005, 08:22 PM   #8
desertratrodder
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Default Re: Help with Carter AFB Carb numbers/ CFM

Quote:
Originally Posted by 36-3window
the 1404 has been answered

the 9637s is 625 CFM
Thanks!

Whats the 1400?
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Old 12-07-2005, 08:32 PM   #9
36-3window
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Default Re: Help with Carter AFB Carb numbers/ CFM

Quote:
Originally Posted by desertratrodder
Whats the 1400?

600 CFM
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Old 08-09-2013, 05:56 PM   #10
ewoky409
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Question Re: Help with Carter AFB Carb numbers/ CFM

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?
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Old 08-09-2013, 08:52 PM   #11
John Brown
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Default Re: Help with Carter AFB Carb numbers/ CFM

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.
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Old 08-09-2013, 09:30 PM   #12
carbking
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Default Re: Help with Carter AFB Carb numbers/ CFM

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.

Jon.
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