Hello everyone. I have a 1993 Webbcraft 20' ski boat with the 4.3LX Mercruiser and an Alpha 1. My prop is a stainless 19 pitch, and off the top of my head I don't remember the diameter. So on the motor cover it says that the max rpm for the 4.3LX is 4400 RPM, but I regularly hit 5200 RPM at WOT...
