if i were to put the stock spring back into my trailblazer rather then the one that came with the rcr what would happen i gave the 250 to the wife and she dont like to go full out all the time and it is kind of rough when your off the trail and you have to build that many revs to get over a log. i would like to keep the pipe and maybe a little more low end then stock i dont really care about top speed...

 

give rick a call,im sure you can hook you up with something a little better than stock but less than what ya got now..

 

Put the stock spring back in and change the sprokets to a higher ratio. It will take away some of your top speed but it will give you back low end power.