Conversion of C75-12F to C85

Gordon, sorry for the delay replying. I'll try to find it next time I'm out at the hangar.

I have a C-85 with the O-200 crank and a 7149 prop. I cruise at 2400 with the throttle back a little. At full throttle I get a little over 2500 rpm. So it sounds that a 7150 might have a little lower top RPM. My static is about 2225. With a light airplane (me and not full fuel) I climb at 1200 fpm on a cool day. Worst case is 300-400 fpm loaded on a hot day. I cruise at 105-110 depending on how heavy we are. If you are flying heavy, you will get nowhere near redline. At least that's my experience.