I am starting to get myself acquainted with a 91 ac that I got used a while ago. I am running a 15x8 MA prop, on 15% nitro.
It starts without too much fussing. Transitions reasonably smooth. However, I cannot get it to run past 7500rpm. Is this ok, or
should I get something more with this prop?
Also, I noticed fuel coming out of the carb barrel, especially at mid range. By the end of the run, there is quite some fuel all over the carb.
Again, since I am new to 4-stroke engines, not sure if this is normal.

Any help is appreciated...

Alberto