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  1. #1
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    Default If I run a spacer with super b carb do I still need to use an insulator block

    I am going to need to run a 1" spacer with my super b carb because my new oil line design on my shovelhead interferes with the enricher. So my question is do I still need the insulator block?

  2. #2
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    Probably not. I've run Bs with and without and never noticed a difference.

  3. #3
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    With a spacer that big I wouldn't worry about the insulator block.

  4. #4
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    I always thought the shovels ran better with a 1" spacer anyway. Something something intake tract length increased velocity something something.

    That said I use the phenolic spacer. It's a thermal insulator that prevents the carb from soaking in unnecessary engine heat.

  5. #5
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    Default

    Quote Originally Posted by Blackbetty View Post
    I always thought the shovels ran better with a 1" spacer anyway. Something something intake tract length increased velocity something something.

    That said I use the phenolic spacer. It's a thermal insulator that prevents the carb from soaking in unnecessary engine heat.
    yes

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