Seems like i get better speed the higher my trim is set.. but sometimes even half-way up the now starts bouncing up and down like crazy then i have to pull the trim down to stabilize the boat.

Why does it do this?

its called porposing. first thing i would look at are the props.

its trying to carry the bow, then dropping it, then carrying it.

I have a total no name prop that came with the boat.. another reason why i need a steel one..
Thanks for the info.

Why don't you tell us what the boat is, power, drive,........

it's called the laws of physics.

oh snap...einstiens is in da house

Baja Force 235, 330HP 454ci, bravo 1 outdrive.
The prop that came with it is new.. my buddy who knows props says it's a POS $2 prop..

There should be a number stamped on the side of the prop that will tell you the pitch.

I have the same boat and it used to have the same engine. What speed and rpm do you get at WOT? Also, the prop that you have , is it stainless steel or aluminum?

The faster you go...The more you can trim it up...Prop will help too....mess with your cruise speeds and vary the trim...MHO