Help! Jetting and clutching 02 mountain sxr

I converted my 02 sxr into a 144 mtn. I just purchased a set of used tripple pipes, by Power inc. I need help with jetting and clutching fast. They say they perform the best around 8400 rpm. I will be testing at 300-5000 feet and riding at 8000-11000. Would the heavy hitter clutch let me dial it in right?
What jets should I be running, anyone have experience with these pipes. Any advice. email me at justinbsxr@hotmail.com

which pipes end or centers and what size sxr 700?
I do know that with PI pipes the pto is the fat jet center and mag the same. my 700 was 143.8 143.8 145 (all jetting is pto to mag) with center dumps it switched to 145 143.8 143.8. My end dumps I run 151.3 150 150. I also went from 47.5 pilots to 50. raised needles on center and mag. This is all Iowa sea level riding. So if you know your stock jetting you can kinda figure it from there. Mt perf has set ups for those pipes at elevation too. Maxdlx

Its a 600 and there end dumps. What did you do with your clutching? Do you like the pipes. What rs should I run them at.
thanks justin