[Oldguy50]

2001 660 11:1, Stage 2 cam, full yosi, K&N open box, protec cover.

Running 160,165 mains, needle second from bottom. I am at 4400 elevation.
I'm seeing a dead spot on mid range.

Question.
Does anyone run larger mains on similar set up bike.

 

[QuadManiac]

Raise your needles a notch, if it gets worse, lower them a notch instead.