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  1. #1
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    May 2006
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    Medina, Tenn
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    hydrotech mods to hpdi case

    What do they actually do to the hpdi coned lower? Just going through break in now with a new powerhead and phase 2.

  2. SEE YA!!!!!!!! DLAB's Avatar
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    Jan 2010
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    Pineville, Louisiana
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    9,963
    #2
    The one I had they put the intake holes on the bottom like a sporty, profiled it a little different, and put a fatshaft.

  3. Member
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    May 2006
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    #3
    How much did it help handling?

  4. SEE YA!!!!!!!! DLAB's Avatar
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    Jan 2010
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    Pineville, Louisiana
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    #4
    Honestly I never really got used to it. It was shorter than the stock coned unit I was used to running. I didn’t like it at all, but maybe the setup wasn’t quite rt.