Continental O-200, what RPM for 90HP ??

[supercub]

I have to de-rate my O-200 to 90hp by limiting the redline on the tach. I've found one power curve chart and it lists two power curves. One graph says "Full Throttle and the other is "Prop Load". Per the prop load graph line 90hp is about 2675 rpm. The Full Throttle graph line 90hp is about 2475rpm. Not sure where this chart came from or how accurate it is. Does anyone have a chart from Continental or does anyone know what the proper tach/rpm marking should be for 90hp?
Thanks

 

[JimC]

 

[JimC]

 

[JimC]

 

[JimC]

 

[supercub]

 

[JimC]

 

[supercub]

 

[reileyr]

 

[JimC]