I have a 98 four winns horizon 180 rs 2480 lbs with a 4.3 gl 190hp, a sx outdrive with 1,79 gears and a 18 degrees dead rise
it has a Turning point 14.25 x 21 3 blade on it now. Running 4200 rpm's at 35 mph trimmed to achieve max rpm's and speed, I would think the boat should do over 40 mph, I...