Jetting question

[Rampage]

has anyone put a K&N direct to there carb? I did and I am getting a ton of air. I am running a 290 jet and all I have done is a FMF pipe and TORS off and Oil Injection block. I live in Utah and it is 5000' Anyone run that high? What size jet do you run? - Thanks

 

[bundyho1]

im running a 310 and 320,im below 1000 feet.you may need a 330 or bigger

 

[Rampage]

I think the higher you are the smaller main jet you would need? I heard every 2000' you should go 1 main jet size smaller that would put me about right at 290. I might try a 280 when I get home.