Yeah Ive been told i have to lean out the top end, if i dont use the ram air. I have the air box, with KnN filter, I will likely get some filters that will fir the ram air ports, and put pre-filterson them.
The reason i dont want to run the 520, what dajogejr said, AND i already have a brand new 530 chain and the bike has a 530 on it, Not to mention i dont have a sprocket on the shee, I am going cheaper, if i already got it, why buy it? What sprocket should i use on the back, Its got 16 teeth up front and i have 20 or 22 ( i dont remember at the time) dick cepek's for the paddles.