Dave Gribble wrote:

This included an STC to 160 HP, new
millennium cylinders, new crank (a story, there..), new cam, new carb, a
repitched prop, and a powerflow exhaust.

I installed tuned headers on a van once. It ran rich after that, due to the reduced
back pressure. I had to rejet the carb to fix it. That leads me to suspect your new
exhaust, but you've put a new carb on there too. Can you put the old one back on for
a flight?

George Patterson
Treason is ne'er successful, Sir; what then be the reason? Why, if treason
be successful, Sir, then none dare call it treason.