We had a 1997 24 convincer 385 h.p. 454 mag. The boat ran 69.5 gps with a 23 pitch mirage 3 blade. I had a 24 pitch 4 blade bravo one labbed and the boat still ran a solid 69 mph. Looking at the photo it appears that you need to get some more bow lift. These boats run fastrest with a lot of trim balanced on the pad. Hope this helps.