ID 2300 Holley

['68falconohio]

Hey guys,
I got a Holley modular series 2bbl carburetor off of one of my friends for a good price...FREE! However, I do not know what CFM it is or its model number. There is a 'remanufactured' sticker on the top of it but it has no carburetor tag showing what model it is. All the sticker says is 'remanufactured', no company name. I do know that he pulled it off of a Ford 360 and added it to his collection of Holleys. I couldn't tell you if it was the original carburetor on that truck as I'm pretty sure it was a '65 Ford Pickup.

How should I go about IDing what CFM and model it is??

Thanks,
Stephen

 

[Gene Fiore]

On the back side of the air horn, facing the float bowl, there should be a number stamped into the metal. For instance, the Holley 500cfm 2 bbl would be 4412. Just find this number and search the Holley website for it.

 

[Crosley]

Some Holley carbs do not have a list number on the air horn.... I bought a carb from a fellow with the list number XXXXXX off the air horn.

When I received the carb I immediately knew it was not a # 7448 Holley carb... I had not verified with the fellow it was a Holley 350 CFM carb list #7448

The carb had a metal tag on a screw. I sanded on the XXXX'd out list number for a partial number.

With the tag number and partial list number I was able to learn the carb was a 350 cfm off an International truck engine ....

 

['68falconohio]

On the Air Horn:

LIST 6221-2
3449

I havn't had anything come up when I search these numbers, gonna keep looking.

Thanks guys,
Stephen

 

[Crosley]

Measuring the throttle plate will give you an idea of the CFM 350 or 500 cfm are the common sizes.

The rebuild kit I got from Summit had gaskets in it to fit the throttle plate for the small and large base carb

 

[wallaka]

It's a replacement carb for a 2300C. Measure the butterflies: 1 1/2 inches is 350 cfm; 1 11/16 inches is 500 cfm.