Originally Posted by rustycase
IIRC, small engines lose 10% horsepower per 1,000ft above sea level.
...and you are NOT starting out with much!
Begin with 2hp. Take that to 6k ft above sea level, on a good day, you'll be smoking the dyno at 1hp!
That's very interesting. It also makes me feel better, knowing that I'm only 10ft above sea level.