Looking for more mid and top...stage 3 cam and 13.5:1 piston ok w/o head mods, stock exhaust? Or 14:1 w/110 octane?
Have r&d power bowl & fmf snap on it now...Thanks!
Yes, Hot Cams stage 3; the screen is out, also added those 1" round vents to each side of the air box. I guess I'm used to the power output of my KX540...the 450 feels like a 250...
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