Tuning of Sirio Kanai EvoII
 

I am trying to tune my Kyosho inferno MP777 WC but have some problems.
The engine used is the Sirio .21 Kanai Evo 2.
I can’t get the setting ok for full throttle. Looks like it's being to rich at the high end and keeps holding back at full throttle. Can it be that the glow plug is to cold? The one I use now is the A5 glow plug. Also the right factory settings would be welcome.
Anyone had this problem before? Oh yeah the temperature is now about 5 degrees C.