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C1 exhaust tone change?

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  • Michael Jones
    #1

    C1 exhaust tone change?

    Can altering the timing on my 283 '57 Vette engine cause the sound of the exhaust to change? I retimed it along with replacing the intake manifold gaskets with the type that block the exhaust crossover ports. It seems to have much more blustery tone now.

    ???

    Mike
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    • Mark Ring
      #2
      Re: C1 exhaust tone change?

      The exhaust crossover blockage will cause that. It may affect the low end power to some degree but tough to tell by the SOTP. Be sure to block the heat riser valve open if you still have one.

      -Mark.
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        • Michael Jones
          #3
          Re: C1 exhaust tone change?

          Mark, thanks. That's good input. I may get used to it, but so far I don't like it. It's seems to be louder too.

          Mike
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