RealAir Duke Performance

[Les Parson]

I'm really enjoying the RA Duke, especially when comparing operator specs as it relates to actual performance. One question - actual B60 specs recommend keeping CHT at or below 225 C. I am able to do that, but only with at least 1/2 cowl flaps. However, flying in CA and NV with ISA+10 or more temps may be the answer. Also, I have not yet been above 16000 feet with the aircraft.

Any additional information appreciated.