rbcat, The jack plate is set approximately 1 1/4 inches upward from what would be level with the plate, prop = Yamaha Vmax Series 25 Ti, ventless. To date, the best run is 65 mph (GPS) at 5000 rpm at 75 degress F on fairly flat water. I dont know how much faster she will go, but have to admit Im not the most skilled at working through the chine walk. Im not a tournament fisherman, so running in the 50s is OK for me. Primary purposes for the PIV/200 hp are the confidence to navigate big lakes and also fish smaller lakes and rivers.