Need ideas to stop porpoising?

[gss036]

The negative trim angle look in the picture is probably because the tongue of the trailer is high to accommidate hitching up to the truck. I normally try to keep the top of the motor running flat with the water or a little higher.
Tom Clark in Seattle sent me the following e-mail(s)after looking at the pictures.
That is a Turbo prop made by Precision Propeller (now owned by Yamaha).
Those are great props on smaller boats, usually very fast,
but not a great prop for a high horsepower motor on a pretty big boat.
Looking at the photos, I would recommend raising the motor two holes (1-1/2").
From the Honda propeller catalog I would recommend the OFS 4 Blade
15-1/4" x 16", Honda part number: 58334-ZY3-B16CL
I had a an e-mail from the sales guy at Cap Sante and he wants me to bring him the boat this week and will raise the motor, now I will need to work on the prop issue. I have no idea what the price difference would be on the 2 props. Any ideas? He is off on Mondays, so will contact him on Tuesday after I go salmon fishing in the morning.