After torqueing all the prop bolts, and installing the exhaust headers the all new 520iS was ready to suck on gas. Sitting at just under 5000hrs on this build, I rolled her out onto the driveway and hit the start button while cameras were rolling. The engine fired right up and sounded sweeeet. Oil temps took a good while to come up which is GREAT news. CHT's all close together and the beast was begging me to throttle up. As soon as the oil temps reached 110 I hit it. Before I knew it, she was screaming out 2320 Static RPM with a big ol 3 blade Catto on the back. This prop may very well be a fantastic option for our birds. I noticed a bit of vibration so I'm hoping the prop is out of balance, but knowing the engine still needs a good breakin, I'm not too worried about it. I shut her down and rolled her back into the shop, not seeing a single drop of oil, or fuel. Bone dry everywhere. I now have to focus on finishing the cowling and getting a couple exhaust pipes welded up. I must say, she really doesn't look bad all white. :)