Posted for "cblitzer" <cblitzer@triad.rr.com>:

 I can echo Jack's statements not because my knowledge or experience comes
anywhere close to his, but what I do know is that Jack checked me out in my
IV-P.
 We first did some stalls and noticed a wing drop.
 Landed, put stall strips on and now my airplane stalls like a 152.
 Plenty of buffet, stalls straight ahead.
 On another note, during flight testing, the original DAR had my builder
change the governor setting because the prop was not producing enough RPM.
 Turned out the governor was fine but the prop came out of MT from overhaul
NOT set at 2700 RPM.
 So we adjusted the prop, but neglected to re-adjust the governor that should
NEVER have been touched in the first place.
 Jack took off, and about 200 feet, the engine sputtered, black smoke etc.
 Jack recovered by REDUCING power, and thankfully landed without further
incident.
 Why the power loss and balk smoke - as previously stated, watch your fuel/air
ratio.
 Turned out that when we increased the prop RPM without adjusting the
governor, the prop exceeded 2700 RPM by a lot.
 This in turn made the mixture so rich the engine would not power up.
 Result - power loss, black smoke, AND recovery by reducing power, Lessened
the fuel.
 Lessons learned -
 1 - always have a great test pilot/instructor, (thanks Jack)
 2 - NEVER EVER touch the governor when you are looking at McCauley
calibration sheet that says 2704 RPM on the bench no matter who tells you to
 (even a DAR)
 3 - Check you fuel/air ratio on the ground. full power, we strapped the
horizontal to a truck.
 4 - don't be afraid to install stall strips.
 5 - Always have great instructor/test pilot
 
 Craig Blitzer
 L-IV-P
 798CB
 95 hours, ready for paint