@MDB1056 More to it than just ZO. The old engine is a 351 HO, which is carbureted, and we've been running in saltwater with no closed cooling. A rebuild will only get us so far. This new setup gives us modern ignition and fuel delivery, closed cooling and 110 (120?) more horses. I know the boat very well, and my wife and I both love to ski behind it. In fact she's totally into doing this. I'm a lucky guy.
Most importantly, @eleeski told me he won't ski with me until I get ZO or a paddlewheel for PP. So there's that.