I have an '03 400ex and I just got an HMF slip sport, K&N filter w/ pre-wrap, lid removed and a dynojet kit. I am at 900 ft. I hate asking jetting questions but does a 170 main jet seem about right? Also, what should be the next thing to put on, I have skid plates, nerfs, and Kenda Klaw XC. Thanks alot.