Howdy, I have an 05 XR650R and I just uncorked it! In the process I did the HRC Intake Manifold, removed the rubber boots from airbox, put a #175 Main, 68S, and the b53 needle w/clip in the 3rd position. I then put a White Brothers E2 pipe and left the stock header. The bike is still not running right (power is not fully there, throtle response is lacking, and will pop-out and die in certain situations. I am doing the majority of my riding at sea level. Any input would be greatly appreciated. Thanks!