Update. I came across a an aggressive stainless Solas 14x25p 4 blade prop new for $100. I put it on a d took the boat out loaded to around 3700lb on fairly rough water today. Topped out at 54mph at close to 4700 RPM. With just me, no extra weight and less than a half tank i am confident it would turn 4900+RPM. I am impressed with this little 4.3 lol.