No problem anytime bud. I forgot to ask what type of glow plug are you using. That could also be adding to the high temps. Running the wrong plug for what fuel your running will give you high temps.
Theres alot that comes into play when running nitro engines. The air temperature, humidity...
The fuel is your problem. 20% nitro should have no more the 12% oil. Ideally basher look for nitro with 10-12% oil. Racer look for below 10% oil, and more like 8-9%. The fuel plays a big part of the tunning. With the higher oil. Your engine is already thinking its running rich. Because of the...