How to get max. perfomrnance with CEM in Spit/Hurri ?

[oho]

Hi all,
how do you get best performance in the hurricane rotel and Spit Ia with flexible prop pitch?
With what RPM of the rotor do I get (with full throttle) the best performance together with what speed? Or is there fix best performance rotor speed, so that i can just adjust the rotor-blade angles and try to hit this rpm?
I generally fly with full radiator open, because I it the motor goes bad too fast for me, or is there a not risky setting for the radiator?
Mixture is always rich to get best performance - is that correct?