SAAC Forum

The Cars => 1969-1970 Shelby GT350/500 => Topic started by: Brian350 on August 24, 2026, 08:37:24 PM

Title: Noob carburetor questions...
Post by: Brian350 on August 24, 2026, 08:37:24 PM
Can someone please identify this carb, and does it look like all of it's parts are intact? Am I missing the idle up solenoid? It's currently on my 69 GT500...
Title: Re: Noob carburetor questions...
Post by: Brian350 on August 24, 2026, 08:37:57 PM
2 more shots
Title: Re: Noob carburetor questions...
Post by: J_Speegle on August 24, 2026, 09:17:09 PM
Looks like (according to the air horn) the main body is a C9AF-9510-N. These were used originally on 69 428 Mustangs & GT500's equipped with automatic transmissions.

For your application, yes you are missing the idle solenoid, the factory fuel filter and of course the supply line is some aftermarket or made up piece. Looks like someone rattle can finished the carb at some point.
Title: Re: Noob carburetor questions...
Post by: JohnSlack on August 24, 2026, 10:19:10 PM
Forget the obvious missing parts, you need to know what is out of specifications on the inside.

"The long and winding road."
Title: Re: Noob carburetor questions...
Post by: Bob Gaines on August 25, 2026, 05:43:17 AM
In conclusion the carb appears to be missing minimal parts (available at NPD or Mansfield Mustang) and it is correct for your auto 69 GT500.
Title: Re: Noob carburetor questions...
Post by: Shelbypat on August 25, 2026, 09:52:12 AM
It looks like the hollow stud has been deleted also.

 Why idle solenoid ?
Not a dashpot !!!
Solenoid come with AC maybe ?
Title: Re: Noob carburetor questions...
Post by: Special Ed on August 25, 2026, 10:52:19 AM
electric solinoid was only used on 70 cj  mustang cougars cars marked ac. and ad and used manual chokes.
Title: Re: Noob carburetor questions...
Post by: Brian350 on August 25, 2026, 12:33:47 PM
Thanks everyone!! Very helpful. I am actually entertaining replacing this carb altogether. It seems the adjustment screws are somewhat loose and maybe not staying set causing the carb to underperform and need regular adjustment. Will be looking at the jets as well...
Title: Re: Noob carburetor questions...
Post by: Bob Gaines on August 25, 2026, 12:52:58 PM
Quote from: Shelbypat on August 25, 2026, 09:52:12 AMIt looks like the hollow stud has been deleted also.

 Why idle solenoid ?
Not a dashpot !!!
Solenoid come with AC maybe ?
A typo no doubt. No electric solenoid on 69/70 Shelby.
Title: Re: Noob carburetor questions...
Post by: pbf777 on August 25, 2026, 01:09:44 PM
Quote from: Brian350 on August 25, 2026, 12:33:47 PMIt seems the adjustment screws are somewhat loose and maybe not staying set . . . . .

    If this is in reference to the "idle adjustment screws", the restriction in rotation (and sealing) is maintained by simple cork packings that press into the recessed bores and that the idle mixture screws thread through.   :)

    Scott.
Title: Re: Noob carburetor questions...
Post by: J_Speegle on August 25, 2026, 01:51:33 PM
Poor choice of words  :(  fell into the "trap"  since the OP used the term. Agreed a non-electrical Dashpot mlike used in 66 for example on many automatics
Title: Re: Noob carburetor questions...
Post by: Brian350 on August 26, 2026, 12:52:35 PM
Quote from: J_Speegle on August 25, 2026, 01:51:33 PMPoor choice of words  :(  fell into the "trap"  since the OP used the term. Agreed a non-electrical Dashpot mlike used in 66 for example on many automatics

Yeah, you can't count on me for correct terminology! I'm learning a lot...