Ya'll's thoughts? I think it's a bit on the rich side but it's running pretty good. It does have an alarming tendency to start backwards but if I trim the idle low enough it will bounce itself over in the correct direction and stabilize after a few moments. I also want to add one head shim, as I'm running 15% nitro and I think I can hear it objecting to the compression ratio and nitro percentage around 3/8ths throttle. See 2:00 into the video, it captured it pretty clearly. But other than that I'm quite happy, and it will certainly fly the way it is.

I do not know what RPM it's turning. I lack a tach. My ear wants to tell me it's running between 12,500 and 14,000 at WOT, but being as this is the first aircraft engine I've owned there's no telling how far off I am.