What do you think?

I think there must be something wrong. You'd have to do alot more than just drop in a cam.

different timing and jetting. you would be setting it upfor a while toget it right. and i spect it would be a bit harder 2 start.

cheap tho.

There was a review of these for the crf 450 or 250 in one of the mags a couple months ago. They said they saw big improvements but spent the day at the track getting the jetting right. So u could be there a couple weeks. They're definetely cheap in price though, PC stuff is usually pretty good.

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