Author Topic: 1967 GTA Convertible w/390 CI - Carburetor Question  (Read 2718 times)

lprice1024

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1967 GTA Convertible w/390 CI - Carburetor Question
« on: April 19, 2014, 09:42:45 AM »
Just inherited a 1967 GTA Convertible with the 390 CI engine. Is the correct carburetor a Holley 4 Barrel #C70F9510D?
Is it possible to get a rebuilt one or is it possible to rebuild this one?
Should the last letter in the Model # be a D or either A,B, or C?
Thanks from a neophyte.
LP

lprice1024

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Re: 1967 GTA Convertible w/390 CI - Carburetor Question
« Reply #1 on: April 19, 2014, 01:36:47 PM »
Just inherited a 1967 GTA Convertible with the 390 CI engine. Is the correct carburetor a Holley 4 Barrel #C70F9510D?
Is it possible to get a rebuilt one or is it possible to rebuild this one?
Should the last letter in the Model # be a D or either A,B, or C?

Additional Info -  DSO - 15, TRANS - U, DATE - 27F, AXLE - 1, TRIM - 2A
Thanks,
LP

DSO 90

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Re: 1967 GTA Convertible w/390 CI - Carburetor Question
« Reply #2 on: April 19, 2014, 05:05:56 PM »
Hi,

 You have a 4150 Holley four barrels; It's the right carburetor on your 390 ci. (the most current carburetor on FE engines)
For your main question, both are possible; you can get a new one, that model is still built or you can
buy a "rebuild kit" and clean it, that the less expensive if you can do it by yourself... ;)

You have a problem in particular with your carburetor ?

lprice1024

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Re: 1967 GTA Convertible w/390 CI - Carburetor Question
« Reply #3 on: April 19, 2014, 08:29:16 PM »
The car has sat for a couple of years and upon trying to start it the carb is leaking like crazy.
Do you know where you can buy a new one?
Does the last letter of the model # matter? Mine is a D, I've seen them with the same part number but with an A.B.C.orD.
Thanks,
LP

DSO 90

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Re: 1967 GTA Convertible w/390 CI - Carburetor Question
« Reply #4 on: April 20, 2014, 05:14:55 AM »
Hi,

You can find it, in some automotive suppliers such as "Jeg's racing", "Summit"... (follow the link below)
http://www.jegs.com/p/Holley/Holley-Ultra-Double-Pumper-Manual-Choke-Carburetors/2802148/10002/-1

Sincerely, I don't know the difference between these several digits (A,B,C or D), but the most important is the capacity; In your case, originally that must be an 650 CFM.

lprice1024

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Re: 1967 GTA Convertible w/390 CI - Carburetor Question
« Reply #5 on: April 20, 2014, 05:48:28 AM »
Actually it's 600 CFM.

DSO 90

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Re: 1967 GTA Convertible w/390 CI - Carburetor Question
« Reply #6 on: April 20, 2014, 07:54:55 AM »
That curious, Do you have a picture of your carburetor. Personnally, before replace it, I will try to ask some help to a good guy or a friend to check first, the fuel bowls level (maybe it overflow when engine is running). Then If the problem continue, I will buy a repair Kit to replace gaskets by myself, it's not really complicated to make, you just have to be tidy mind and take some pictures during overhaul if you have any doubt.

That just my opinion, good luck from a frenchy :) !

Franck

Topless_Horse

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Re: 1967 GTA Convertible w/390 CI - Carburetor Question
« Reply #7 on: April 21, 2014, 04:04:33 PM »
The correct part number for the carb used on the S-code automatics is C7OF-9510-D.  This is a Holley cathedral bowl 4150 600 cfm carb.  You can buy a rebuild kit for it at Summit Racing (and probably elsewhere too).

lprice1024

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Re: 1967 GTA Convertible w/390 CI - Carburetor Question
« Reply #8 on: April 21, 2014, 08:17:33 PM »
Topless horse,
Thanks for the reply. Just so I understand, even though it wasn't a california car, it still got the Model D carburetor?
Thanks,
LP

Topless_Horse

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Re: 1967 GTA Convertible w/390 CI - Carburetor Question
« Reply #9 on: April 22, 2014, 07:09:07 AM »
My authoritative source (the Master Parts and Accessories Catalog) indicates that the 67 GTA Mustangs with the Themactor systems used carburetor part number C7OF-9510-P (my first post was wrong!) and those without the Thermactor used carb part number C7OF-9510-M.

There's also an "identification" column listed in the MPAC.  It's not clear what the "identification" is intended to indicate - maybe the stamping or the tag  numbers.  The identification number for the Thermactor carb is C70F-D and for the non-Thermactor carb it's C70F-B.

Hope this helps a little.

lprice1024

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Re: 1967 GTA Convertible w/390 CI - Carburetor Question
« Reply #10 on: April 22, 2014, 07:21:05 AM »
Thanks, so much. I'll see if I can get a copy of the "1965/72 Car Master Parts and Accessory Catalog"
LP

Topless_Horse

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Re: 1967 GTA Convertible w/390 CI - Carburetor Question
« Reply #11 on: April 22, 2014, 07:50:07 AM »
You're welcome.  It's a great tool.  You can find them on eBay (they're on CD).  They are a bit hard to use because they are PDF image files that you cannot search but well worth the effort to find stuff.

Hope you have a shop manual too.  Those are available from the aftermarket suppliers (National Parts Depot, Mustangs Unlimited, etc.) in paper or electronic format.

Lastly, I'd suggest joining some of the other Mustang forums.  Vintage Mustang (VMF - http://forums.vintage-mustang.com) is excellent.

lprice1024

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Re: 1967 GTA Convertible w/390 CI - Carburetor Question
« Reply #12 on: April 22, 2014, 08:27:29 AM »
Topless Horse,
When I try to register on Vintage Mustang the website says my email address has been blocked by the administrator and to contact the administrator. I left an email to the administrator and he hasn't replied. Oh well.

lprice1024

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Re: 1967 GTA Convertible w/390 CI - Carburetor Question
« Reply #13 on: April 24, 2014, 08:15:23 PM »
Topless Horse,
I just got the MPAC. So, would you agree that it appears that a 1967 GTA W/390 should have the 9510B and not the 9510D?
LP

Topless_Horse

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Re: 1967 GTA Convertible w/390 CI - Carburetor Question
« Reply #14 on: April 27, 2014, 09:05:09 AM »
Please see the screen shot of the MPC attached - upper line is without the thermactor system, lower arrow points to the line "with thermactor".

 

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