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Thread: 500 cfm vs. 600 cfm carburetor

  1. #1
    Senior Member pop's stang's Avatar
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    500 cfm vs. 600 cfm carburetor

    That would be a good carburetor to run on my 289 small block? This car is not for racing. 500cfm or 600cfm and why?
    "If speed wasn't important, it wouldn't be called the human race!"

  2. #2
    Kickin it Old School somethingclever's Avatar
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    I really do not think you will notice a difference between either carb.

    I would pick the 600 because bigger is better. :)
    -JOHN

    Carburetors and SAE wrenches.................


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  3. #3
    Member travj31's Avatar
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    If the motor is built at all, I'd go with the 600. You can always put in smaller jets if needed.





  4. #4
    No Traction due to Paxton PaxtonShelby's Avatar
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    I assume you mean vac secondaries and not double pumper?

    If it is a mild street motor and you don't plan on modding it further I'd say go with the 500. Too much carb ( fuel or air ) isn't a good thing. Lots of very snappy small blocks out there are running 500 cfm carbs.
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