This time it shows 24 HP with an exhaust temp of 1038 degrees. At 8000 its reading 24.6 HP and the exhaust is 1047. At 9000 power falls off to 21 HP with the exhaust temperature of 1050. I think power would be increased. I altered the fuel mixture and ignition timing in the examples below to indicate the changes MOTA 5 can do.
Peak power is indicated in red.
So it seems the richer I made the mixture the more power the simulated engine made. It will be interesting to see how this engine does on a real dynamometer. It's hard not to notice that pressing a few keys to change the ignition timing and jetting is much faster and simpler than actually changing the parts on the real engine. As I changed the timing and other variables, I was able to increase the power output. The most noticeable change in power is before and after the power peak.