Pipe is back on the bike, and swapped back to the stock clutch with Mini Adventure springs for a 5000rpm slip. Forgot to torque the bolts on the clutch shoes, got locked up a couple blocks from home, oops. No damage thankfully! I kinda like the low clutch stall. Makes things really fun when it comes on the pipe, even with crappy carb tuning at the moment.
Also got a real PHBG from Treats to help with the tuning. Seems pretty rich overall, with jetting taken from the KTM stock settings and adjusted for altitude (6400'). 80 main jet, 40 pilot (stock is 86 and 45, I think). W9 needle right now with 262AU?
I don't know if I trust my super cheap EGT gauge (waiting for another probe to double check it), but the bike feels/sounds rich and EGT only hits an indicated 450C at the most when it's on the pipe. Gonna downjet tomorrow and see how it does.