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Old 04-16-2004   #1 (permalink)
scheki is offline Rookie


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Default Need some carb info

Here is one pic of a tag on the carb.
The guy we bought it from said it was a holley 780 dual pumper.
We had someone adjust/rebuild the carb and he said it was from a 428CJ? Any help would be appreciated.
http://www.superford.org/getfile.php...tang-carb2.jpg
http://www.superford.org/getfile.php...stang-carb.jpg
http://www.superford.org/getfile.php...-stang-eng.jpg
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Old 04-16-2004   #2 (permalink)
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What are the numbers on the choke horn ?
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Old 04-16-2004   #3 (permalink)
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Only if i knew what the is. Can you get a ref pic?
SOrry, I am not really a mechanic or work on cars so I am clueless.
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Old 04-17-2004   #4 (permalink)
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Get me the list number on the front of the carb... Look at the second picture you gave us. Directly in the center of the picture there is a the choke horn (where that little flap is that covers the first two barrels of the carb). On the drivers side front there are numbers called list numbers... Tell me what those numbers are.

Example:
4776---------> 600 CFM double pumper
4777---------> 650 CFM double pumper
4778---------> 700 CFM double pumper
4779---------> 750 CFM double pumper
4780---------> 800 CFM double pumper
4781---------> 850 CFM double pumper
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Old 04-17-2004   #5 (permalink)
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This is the choke horn
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Old 04-20-2004   #6 (permalink)
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Thanks for the #'s a pic. I will try to get the #'s.
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Old 04-27-2004   #7 (permalink)
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Default Re: Need some carb info

Quote:
Originally posted by scheki
The guy we bought it from said it was a holley 780 dual pumper.
We had someone adjust/rebuild the carb and he said it was from a 428CJ?
Can't be both, 428CJ's used a Holley 735 carb.
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Old 04-27-2004   #8 (permalink)
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4B28 = February 28, 19x4
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Old 04-28-2004   #9 (permalink)
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I was just going by what the previous owner told us. That is the reason why I am tring to get the info correct.
Thanks.
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Old 04-30-2004   #10 (permalink)
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If the 4628 is the Holley part number, it would be a 780 cfm 4150.
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Old 05-09-2004   #11 (permalink)
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That is the #. What is the story behind it?
Where are the casting #'s and info on the stampings on ther engine block? That is my nexy project.
Thanks
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Old 05-15-2004   #12 (permalink)
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Quote:
Originally posted by scheki
That is the #. What is the story behind it?
Don't know of any stories to tell ya But I can give you the factory Holley set-up info, which may be changed by now, depending on if someone knew how to do more than just bolt a carb on, and tuned it to their set-up.

Primary main jet, 122-70

Primary power valve, 125-85

Primary discarge nozzle size, .026

Secondary main jet, 122-83

Secondary spring color, yellow
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Old 05-16-2004   #13 (permalink)
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Thanks. I found a liitle history on it, it was used i guess on the 70 torino 428's.
thanks guys.
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