I just had the O-235-L2C in my Tomahawk overhauled, and the 125 HP mod
performed at the same time. Now it is getting 2700 RPM at just under 400
degrees CHT, during break in, and cruising between 100-105 knots. Before
the rebuild, cruise was about 2400 RPM and about 90 knots.

I'm very happy with the engine mod, and would recommend it to anyone getting
an O-235-L2C overhauled.

Paul Missman