mkhoskins
What that means is it would probably over-rev slightly at lower elevations and under-rev slightly above 7-9k feet.
I may run ok, however the shift rpms may not be in the ideal range at wide open throttle.
Boosted sleds will usually have a nice broad power peak curve. Possibly as wide as a thousand rpms! While a high strung small displacement 2 stroke can have a very narrow power peak band. Sometimes as narrow as a couple hunderd rpms.
Because of the adjustable boost levels and the broad power band, your boosted four stroke will be less sensitive to elevation changes. This is because it is much easier for the engine stay at it's peak power output. It may not care if it's turning 9200 or 8600! While a 600 rpm change is huge for a N/A two stroke.
I would set it up, so that the rpms are at they're peak power output for the most common areas that you ride. If you happen to go up or down a couple thousand feet in elevation, your still going to have plenty of power to bring a smile to your face!