67 big block carb. identification - NCRS Discussion Boards

67 big block carb. identification

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  • Dave K.
    Very Frequent User
    • January 24, 2013
    • 278
    #1

    67 big block carb. identification

    I have a 67' big block 390hp and have some miscellaneous carbs that I'm trying to decipher. I'm starting to think I don't have the original carb.
    On the forward vertical service of the air horn I have C8AF-9510-AD, List 4088, 834. On the other carb I have List 4780, 0583. My vette was built March 9th 1967. If one of these is not original to the car does anyone know of a GOOD RESOURCE to track down an original?

    Dave
    Tags: None
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    • Joe L.
      Beyond Control Poster
      • February 1, 1988
      • 43193
      #2
      Re: 67 big block carb. identification

      Originally posted by Dave Kocer (57952)
      I have a 67' big block 390hp and have some miscellaneous carbs that I'm trying to decipher. I'm starting to think I don't have the original carb.
      On the forward vertical service of the air horn I have C8AF-9510-AD, List 4088, 834. On the other carb I have List 4780, 0583. My vette was built March 9th 1967. If one of these is not original to the car does anyone know of a GOOD RESOURCE to track down an original?

      Dave

      Dave------


      Neither of those carbs were EVER originally used for a 1967 L-36 application. In fact, I don't think that either were ever used for a Chevrolet application. You need a 3811 or 3815 if equipped with K-19.
      In Appreciation of John Hinckley
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        • Gene M.
          Extremely Frequent Poster
          • April 1, 1985
          • 4232
          #3
          Re: 67 big block carb. identification

          NCRS '67 judging manual/guide has the information you are looking for.
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            • Dave K.
              Very Frequent User
              • January 24, 2013
              • 278
              #4
              Re: 67 big block carb. identification

              I have the judging guide. Since these numbers were not fitting the pattern I am wondering where they came from?? Does anyone know of any resources were I can track down an original.
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                • Joe L.
                  Beyond Control Poster
                  • February 1, 1988
                  • 43193
                  #5
                  Re: 67 big block carb. identification

                  Originally posted by Dave Kocer (57952)
                  I have the judging guide. Since these numbers were not fitting the pattern I am wondering where they came from?? Does anyone know of any resources were I can track down an original.


                  Dave-------


                  There are usually quite a few on eBay. However, some come from "questionable" sellers and most carry a very stiff price. Unless you find someone that doesn't know what he has selling this carb, I don't think you'll find an original which is inexpensive.

                  By the way, I think the 4088 is a Ford carburetor. Holley carbs were used on Ford (and Mopar), too. I don't know what the 4780 is.


                  Addendum

                  I believe the 4780 is strictly an aftermarket carb. At least, I can't find any original applications for it.
                  In Appreciation of John Hinckley
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                    • Patrick B.
                      Extremely Frequent Poster
                      • August 31, 1985
                      • 1986
                      #6
                      Re: 67 big block carb. identification

                      I think a 4780 is a hot rod double pumper w/manual choke about 750 cfm.
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