07 Summit X 800R with fresh top end rebuild. 17.5Pilot and 470 main jet needle position in #3 (middle). Clutching done by BJ. Seem to have a midrange "gurgle" and will start loading up playing in the trees but once you can rip it down the powerlines to "clean it out" it seems to run OK. Ride mainly at Michigan Tech (800ish asl) with a few trips out west a year. Will be doing the rave valve mod to ensure they are both opening up all the way. My question is, before I rebuilt the PO had the needle in #2 ( leaner than now), where should I be with it? Stock motor, only has SLP can. However, I have an 800HO pipe on it instead of the PTEK pipe as I had a mix up at home. It seems to leak a little at the Y pipe joint. Possible issue?