ORIGINAL: Pull Up Now!
The good part is this setup is getting 8500RPM with an APC 13x8 prop (pattern). Seemed like it had a lot of compression when working with this engine on the bench, so I guess I'm not that surprised.
Am I reading that correct? An APC 13x8? 8500 seems a bit low. I have an ST G-90 that would turn that prop 1000rpm more than that.