Ed is compiling the data for a KFactor article. Let me tell you however that the engine ran stronger than the RX's and Webra 145's we've been running, across the board. Even the 19.1x11 was turned but that prop is too much load.
So, the K Factor article has just been written and will show up on news stands everywhere eventually.
Those curious in more detailed data will just have to wait a little longer to see it.