Powerflow and re-pitch

[TontoGoldstein140]

I am installing a powerflow exhaust on a 140. The engine is a 150hp (O320). The engine had a field overhaul just before my purchase with new cam, cylinders, pistons, etc. I do not plan on upgrading to 160hp in the near future. My static RPM is at the minimum (around 2275) at 1000DA temp 60degreesf (on the ground).These numbers are without the new exhaust. I was curious what others saw in performance increase. Has anyone had enough increase to re pitch the prop with the powerflow upgrade alone.
Thanks

 

[JimC]

 

[Leigh]

 

[TontoGoldstein140]

 

[killrocks]

 

[JimC]

 

[2Airtime2]

 

[JimC]

 

[TontoGoldstein140]