Ported 61x 701w/ fpp and 180psi.. base jetting

[COwakerider]

Whats going on guys? I am putting together a new setup and wanna get some suggestions for carb set up. I got a mildly ported 61x, with a fpp blaster limited chamber, and a ada head I wanna dial in to around 170-180 psi(91 octane pump gas) I was gonna order a rebuild kit and figured I would get everything else at the same time. Oh I am in Colorado at almost a mile high if that matters. Thanks guys...

[Matt_E]

Get a hold of one of the Colorado chums (RMBC Freeride, Glory Freestyle). They oughta know what's going on.
Short of that, find out who ported the cylinder and ask him/her.

As a general rule of thumb, you'll need smaller domes for equal compression at higher altitude and leaner carb jetting.