RE: Who is converting Toro trimmers?
I am only around 1000ft or so. The barometric pressure today was 30.11. APC props are far more efficient than most so the RPM will be higher with them. I ran a 18x6 Dynathrust and it was 400 RPM less than a Pro Zinger. It also turned a APC 17x6 at 8500 or so.