Dyno done yesterday, 24 degrees, 25% humidity. 3 runs, 25% throttle (red line), 50% throttle (green line), 100% throttle (darker blue line). The guy didn't explain the mid blue line even though it pops up in the power graph and the AFR graph.
This setup is Honda OEM air filter, FP main 180 front, FP main 185 rear, FP needle on 3rd clip (middle slot) front & rear, Honda OEM diaphragm springs, FP 50 pilots front & rear, screws at 2 turns front and 2 1/4 rear and balance done day before dyno.

Quite rich at the top end. I asked the guy in his expert opinion how far down he would go on the mains, and he said 4. Now I have got some OEM mains and I have read the FP and Keihin mains are measured the same way. Does that mean I can remove the FP mains and go to OEM Keihin while leaving the FP needle?
Any advice appreciated.