High altitude carb settings?

[biodegraded]

Hi all, especially Mustang - I got the pegs yesterday, they look great.

I live at 5000' (1500m) and can climb to double that on rides. I was running my Mikuni carbs with stock settings: 105 main jet, 40 pilot, stock needle, clip on lowest ring, no shims, 1 1/2 turns.

As long as I have the carbs in pieces for total cleaning, are there suggestions on what to change for high altitude riding? I'm not concerned about fuel efficiency, but I neither do I want to drown the cat in petrol.

Comments welcome,
Keith