Questions about a M8 turbo at sealevel

[TheBreeze]

I am looking into boosting a 2008 M8. The sled will be ridden at 1500 ft. primarily, and at high altitude (10,000) + for two week long trips west a season. What kit/kits would be best suited for this application? I would like to run 50% race fuel, or less at low altitude. Any input or suggestions are greatly appreciated. It is hard finding much information regarding the low altitude setups.

 

[killerrf]

from what ive been told guys running turbos near home here at 2000 ft or so are running low boost.. 3 psi for 91 octane. if you run 5 and higher mostly likely will need to run 100 octane to keep the motor alive.