'03 280 Sundancer w/ twin I/O 4.3 225 hp. I just replaced the manifolds and risers on the port engine. She sounds great now, but when I took her out for a test run, I discovered the port engine rpms peg to the max once I get over about 8 knots on port motor. Checked my props and they appear just fine with no damage and can be spun by hand. Do I have a spun hub? Will it require a short haul? Appreciate any help -
