I just waiting until after the first of the year to get a new 450 . been reading a little about the EX cam sproket mod I was told by a local hop up shop that retarding the EX sprocket a full tooth was to much and was causing a few problem and not hitting the full potential . Does anyone make a cam with only 2 to 3 degree rotation or are they all the same?

 

I would say your guy at the local hop up shop is wrong. I haven't heard or experienced that problem.