here is a quick synopsis taken from Xtreme Rc car Magazine:
1. set on stand
2. throttle up to 160 wide open throttle (will have to adjust needles to a very rich setting.
3. let the temp come back down to 120 by idling fuel through
4. repeat....see bellow
tank 2 = 170 then idle 120
tank 3 = 180 then to 120
tank 4 = 190 then to 120
final = 200 then to 120
can do this continuously by just adding fuel.
final break in on parking lot for 4-5 tanks
My interpretation is that he is getting these temps at wide open throttle and running very very rich. The first tank it was stated that he goes wot and just adjusts the hsn until he maintains 160. The following tanks are done the same, but you will have to lean it slightly to get the higher temps.