I have a 2006 KLX 250. I'm installing a full Muzzy system to go along with the high-flow airbox lid. I understand most seem to jet the stock carb with a 132/40 combination, and i think this will work well down in AZ for street/low altitude desert riding. However, the vast majority of my riding will be at altitudes between 9000' and 13000'.

Would anyone care to take a guess at the proper(ish) jets for those mods and altitudes? I'm thinking with the increased airflow of the header, pipe, and airbox combination, the stock jets and needle setting may be close to the right setting in the mountains. Any information, imperical or anecdotal, would be greatly appreciated.