I have a Force 85 horse on a 15 1/2 foot v-hull (Winner brand 69 model). The boat is rated for a 8o horse. The nose of the boat seems to be to low and drags the boat speed down. Could it just be the older design of the hull that is the problem? Would I need to tilt the motor back a natch on the engine mount? Raise or lower the motor? Use a hydrofoil? Any suggestions....thanks for the help.