cruising speed

[K4282]

255hp out of a chevy 350

[prowlersfish]

Ok, brand new dual engine big boater here. learning a lot from you guys. The boat I bought had the original chrysler 318's replaced with 2 ford 351 cleveland cobra's. Boat tops out at about 31 on the gauge.

First question, what is a good cruising speed for this boat and about what should the rpm's register?

Second, what would a good prop size be for this boat?

Third, and last for now, I've got a weird trim tab "switch" when I move it, I don't really see a lot of difference in the trim like I would in my previous ski boat. How can verify the trim is actually working?

Thanks so much for the help. I'm sure i'll have more and I look forward to learning from you all!!

Bryan and Nicole

We need some more info . What year and model is the boat ? what is your gear ratio ? What is the HP of your engines ? Are you sure they are Clevelands ? Almost all marine 351s are winsor , clevelands are not that comon in marine

[todd brinkerhoff]

Ok, brand new dual engine big boater here. learning a lot from you guys. The boat I bought had the original chrysler 318's replaced with 2 ford 351 cleveland cobra's. Boat tops out at about 31 on the gauge.

First question, what is a good cruising speed for this boat and about what should the rpm's register?

Second, what would a good prop size be for this boat?

Third, and last for now, I've got a weird trim tab "switch" when I move it, I don't really see a lot of difference in the trim like I would in my previous ski boat. How can verify the trim is actually working?

Thanks so much for the help. I'm sure i'll have more and I look forward to learning from you all!!

Bryan and Nicole

We need some more info . What year and model is the boat ? what is your gear ratio ? What is the HP of your engines ? Are you sure they are Clevelands ? Almost all marine 351s are winsor , clevelands are not that comon in marine

1. Hull speed. Not over 1800 rpms. Whatever gets you to that speed.

2. Whatever prop that allows you engines to turn its top rated RPM's.

3. If you push down on the left tab, the boat should turn right. If you push on the right tab, it should go left. (Or maybe its the other way around...one way or the other) Boat hook works too.