Right now I'm running a 26 pitch raker on my 225 E-tech. on a Z-20 Ranger.The hole shot isn't all that great and the top end is gps speed of 66 to 68 mph. I've seen other engines on boats about the same size as mine and they are running a 24 Prop. I'm wondering if I'm over proped. The RPM at top speed is right at 5300 to 5500. I understand Ranger is not the fastest boat on the water but thought I should be running in the 70s somewhere.