Here is Francis' Eagle .60 turning a 12x8 Graupner three blade at the rpm you see on the tach, I took the picture about one second too soon, because it went to 8,540 immediately after the shot was taken. It was running on Davis Plane fuel, and had an MVVS 7 mm carb and a Fox header with a J-Tec Snuffler Muffler inserted into it. I'll let him tell the rest of the story if he wishes.