6100 rpm can't be right. My 110 is running way strronger. How new is it?
Was 6100 peak rpm? I turned more than that on my first run with my 110.
My last flight I was turning 6450 rpm. I am still breaking it in with lawnboy. Stock mufflers.
Try tweaking those needles a little. 1/8 turn can make a big difference.