Another Jetting Question

[Marc]

I recently changed out my needle from a CEK to a N3EG and I noticed that I have studder in the upper mid-range under hard acceleration. I pulled the plug and looks to be running a little rich. No real issue at low RPMs

Do you think that I need to raise the clip?

Here is what I got

Temp 45 degree F
Low humidity
elevation 500 - 1000 ft
Fuel 50:1 syn

Slide #7
Needle N3EG
Clip 3rd
Main 178
Pilot 42
Air Screw 1 1\4 turns out

Thanks in advance for your advice