i have a 05 450 just out a pro circuit t4 pipe on and k&n filter with open lid box. what should my jetting be. and also what else could i do to get more HP my buddy has a 05 raptor that is modied pretty good and i want to make sure that i can beat him before i race him i am not one for losing......... thanks for the help

 

i live in indiana so atitude is not a factor for me i just can't seem to get it right

 

I live in Florida and I'm running a 180 main...........

 

Here is one for ya! I have a Dr.D slip on and thats it. I have a Dynojet kit that I am going to install tonight. I can't take the lid off because of riding conditions.What jets do you guys think I should run?

 

what would be the riding conditions?