need some help guys !

I have a 2011 yz450 with stage 1 cams and a dr d fill titanium exhaust and was wondering if I got the head ported and polished would it make a big difference ? my friend has a kx450 a 09 with a full fmf and a dynatek ignition programmer thing do u guys think I could beat him ! also I have a 10 paddle viper and he has a 10 paddle sedona

Only if you're a better rider than him....

It ain't the arrow. It's the Indian!

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