Art,

 

We have a few things going for us in our aircraft, compared to a C172.  We have excess power and we don't need to climb out at a maximum performance Vy.

 

I start the takeoff roll with the mixture pulled out about 1 1/2" inches.  After I get established in the climb, pull the RPM back to 2550, I lean to about 150 degrees ROP and climb out at about 120 kts.  My CHTs are in the upper 300's.

 

If I'm a little too rich, I burn some extra fuel, lose a little power, but I'm not operating at a maximum performance, short field, Vy takeoff anyway.  I'm only getting about 80% power on the takeoff roll, so 150-250 ROP by guessing is very practical for me.

 

Mike