ORIGINAL: plugin
Same thing will happen to a car. If I drive to sea level, my car will notably increase it's performance.
Where you are you will likly need more engine then the OS 91 2 stroke, on the****************** site we have some people who live in Denver and they have to use more motor.
I would guess that a Saito 115 would be the best choice
Normally the Saito 100 is the perfect match for the Swanyshouse Mojo MoAss 60.