Another dyno of almost stock CB750 K2. K7 pistons and cam, K6 head and K6 carbs.
Flat torque curve from 3500 to 8000 rpm. Not that bad response with stock carbs, airfilter and Yamiya no numbers 4-4 without wool.
Max Power = 57,85 Hp Max Torque = 56,67 Nm
No A/F since diffusers are in and carbs runs OK, no need to change.
Maybe ignition disturbances at higher rpms...?