[chrome 69]

i have a carter afb competition carb on sbc does anyone know about choke set up . seems like a heavy spring is holding open position no electric choke .starts hard

 

[oldcutlass]

A picture would probably help.

 

[chrome 69]

A picture would probably help.

 

[chrome 69]

 

[oldcutlass]

How about you take the air cleaner off and supply a picture of the choke linkage. You may have a mechanical choke that requires a cable. We all know what an AFB looks like from afar.

 

[RICH1965]

Are they the same as an edelbrock?

 

[JohnC]

I’ve got an old AFB with a mech choke that I never hooked up. Can you just buy an electric choke kit and add it on?

 

[z27]

I’ve got an old AFB with a mech choke that I never hooked up. Can you just buy an electric choke kit and add it on?

We need a better picture . That does not look like an old AFB . it looks like the later ones they sold in the aftermarket 625 CFM An old AFM has a vacuum choke with the pipe running to the exhaust manifold or a weell on the intake. There is also a large Idle air adjustment screw in between the two fuel idle mixture screws The last time GM used an AFB on a production cars was 1966 and i believe that only Pontiac was the last G/M division to use that carb . A note here is that they made a small bolt on throttle linkeage piece that when bolted on the same Carb could be used on a Chevrolet . I have one of those universal AFB,s and it came off a 66 Catalina . Alex

 

[chrome 69]

Thanks for the input I will remove air cleaner and get a pic

 

[hydro462]

Use the cable and control it manually. This way, by opening the choke after 45 seconds of running, you save your engine from havine raw gasoline washing away the thick oil..

 

[chrome 69]

 

[MikeN]

I'm pretty sure that spring doesn't go there, and it was put there by someone who didn't want to learn how to adjust the choke.

 

[chrome 69]

I'm pretty sure that spring doesn't go there, and it was put there by someone who didn't want to learn how to adjust the choke.

I didn’t think it was right. Never had a Carter carb.

 

[MikeN]

Read this, and look carefully at the photos.

Electric Choke Conversion

Then google search "carter afb competition series choke linkage"

 

[MikeN]

You can easily upgrade that carb to an electric choke. They work mint.

 

[Roushguy]

That's a mechanic choke carb but without the cable so the spring was put in to keep the choke flap open. As suggested buy a cable kit or better yet get an electric choke conversion.

 

[z27]

View attachment 765052
View attachment 765053
View attachment 765050

thats a much later aftermarket Carter AFB more than likely 625 CFM thats a good carb not quite as good as the factory G / M ones but they have not been STD equipment in 60 years. Alex

 

[RPS]

You're missing the choke assembly and the linkages. If it was me, I'd pick up a couple Carter parts carbs off eBay before I'd buy Edelbrock.

But then again I'm a hoarder.

AFBs are fun to tune, I've always had good luck with the usual seasonal adjustments and basic maintenance on a few different cars. An air fuel gauge makes it easier.

 

[oldcutlass]

As the others have said, you need to get a mechanical cable or an electric choke setup for your carb. The butterfly is basically held open with the spring. I don't run a choke on my carb and it starts fine at any outside temp, I only have to feather the gas until it warms a bit and idles on its own.

 

[Jim Mac]

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