I just recently started to use 110 octance race fuel and I noticed that at low rpms it stumbles and boggs out. Is this due to the spark plug that i am running or something to do with the carb? My current ratio is between 32:1 and 36:1.
This can and will affect your current jetting which would explain your problems. You should look into rejetting for the type of fuel you'll be using and I suggest a consistent premix ratio, i.e. 32:1 or 36:1, not somewhere in between. Good luck.