I just built a new engine and have done some testing with it, it is a vortec 350 with a smaller cam (224/224 .503/503 @ 1.5) and this thing seems to run really well.
It is is a 1980 Bahner 20' sport cruiser with a MC-1 drive. I know im overkill for the drive i just want to get through this summer and plan on buying a new alpha this winter.
I took the boat out this sunday to lake perris to break it in and see how it will run, and i was surprised for sure
With the 19 pitch stainless prop i currently have i was running 5100 easily and was not trimmed out yet. At 5100 RPM i was running 56.9 mph on GPS, it felt like it was still pulling but if you know lake perris you know there is not much room.
I would like to "prop it down" to a max RPM of around 4600 to try to save the drive as well as get some more top end, I found a used Mirage Plus 23 pitch for sale that i might pick up, would this be a decent prop? Any other suggestions?
I plan on keeping my 19pitch for skiing and tubing as it did excellent with these two activities.