Take it up to 10,000'. Push the throttle and prop full forward. Lean to
maximum rpm. Note your EGT. Now, for ALL operations, lean to that EGT
(or as high an EGT as you can get). You will be running rich of peak.
Quite a bit rich at high power settings, to running at peak at the
power setting at 10,000'. This is usually about 1350 F on the EGT.