i purchased a corsair 198 with OMC COBRA 3.0L the drive was damaged, i replaced the drive with a OMC Cobra 3.0L of a 1985 17' RENKEN and it came with a prop that has a 19 pich. I took the boat to the lake and the boat would not come out of the water, it came once when i got to some choppy water and the fastest it wold go about 30m/hr at about 4000 rpm WOT. need help please.
