I did some measuring, here is what I found:
Plugs: NGK B8ES (non resistor I believe?)
Plug caps: NGK 5kOhm resistance (the ones from Z1enterprises)
Coils: EMGO, look relatively new to me
Voltage Battery, ignition off 12.68, Battery is 2 months old
Voltage Battery, Ignition on with headlights on: 12.37
Voltage at coils with headlights on: 11.5
Patton, I did the plug chop at mid-throttle and WOT multiple times when dialing in the carbs. Plugs look perfect to me, slightly tan, so I am pretty sure I am not running too rich if that is what you suggest.
I also just tested the spark, looks good to me on all plugs, pretty strong.
Fuel starving just came to my mind as another possible problem. All my floats are set correctly (checked with clear tube), but what if the flow out of the tank is not enough? I have a newish Pingel petcock, but is there a way to check flow, like "should be a pint per minute" or whatever? Again, thanks for y'alls help!