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Thread: Something about Pully sizes I don't understand

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  1. #19
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    duh? II

    Well that was simple enough but now I have to ask is the only difference the upper pulleys and is it that simple? Putting an L upper on a HD and changing"stock tune" gives the HD 40 more h.p.? Seems like there has to be a catch here somewhere......... "Stock tune" needs what to be changed? Yeah, I AM this ignorant!
    Last edited by Danko; 05-12-2005 at 02:26 PM.

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