dudebill, my bet is that you aren't going to see much more power unless you clutch it for the RPM change. (And your high altitude.) The SLP setup doesn't start making more power than stock until after 7800 rpm, and peaks at 8400 RPM. SO with your stock weights and 10K altitude, I bet it won't even pull enough RPM to get into the added power of the SLP setup.
Just my guess. http://www.slp.cc/img/dyno/Polaris-800-Axys-graph.jpg