RE: engine head temp
I got an opportunity for some flight time today and found ground tuning to be much different than conditions in the air. Generally my ground tuning left the engine too lean in the air and two early landings were necessary. My approach is evolving to about 800 rpm rich on the ground. Then fly and watch for slight sag on extended up line or sag on a long high-speed run. If either sag occurs throttle back, land and richen a couple of clicks.
Bill