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  1. Couple Top End Questions

    Engine/EFI/Drivetrain
    Ok I'm about to buy a JE 12.8:1 piston and would like to know what I need to buy or do. I just ordered Stage 2 hot cams and am curious about a few things. I haven't updated my profile info in a while but the engine has the following: 2012 KFX 450R -FMF Factory 4.1 w/ Powerbomb -Procom...
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