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Thread: Holley 4150, 700 DP question
          
   
   

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  1. #1
    Weasel Diesel is offline CHR Member Visit my Photo Gallery
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    Holley 4150, 700 DP question

     



    Hi, Is a 5 size jet change, a large change when it comes to jets? My carb came with 69 primary jets, and 78 Secondary jets. I ordered 64's and 72's. Is this a big change?

  2. #2
    Geezer2's Avatar
    Geezer2 is offline CHR Member Visit my Photo Gallery
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    Car Year, Make, Model: 1976 Cadillac Seville with 454 Chevy
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    It really depends on your engine
    Buying parts I don't need, with money I don't have, to impress people I don't like

  3. #3
    sunsetdart is offline Banned Visit my Photo Gallery
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    In my experience with Holleys and jet changes, you need to start with a baseline. Then go up or down 2 sizes at a time. Going 5-6 at a time can only make things more confusing .

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