I got this from the RB forum from Rody himself

"So before you start to run in an engine I suggest you cover the cooling-head with something so the engine heats-up properly(without the cover the engine will stay too cold).
Then start the engine and let it run rich at full throttle for 2-tanks at a temperature of about 80°C.
Then 2 more tanks at 90°C.
Then 1 more tank at 100°C.

After this your engine is almost run-in, however you need to finish the rest of the running-in in the car for about 2 more tanks and you are then ready to go."

I stop doing the WOT rich thing and did this.