Need ideas to stop porpoising?

[gofastsandman]

Bushwacker borrowed my mirage + and plotted a performance chart. I expected to lose in hole shot, min speed to plane, midrange, mpg, and handling. The 4 blade also beat the Mirage + top end! This was deflating. Contrary to my p brained belief. More drag = higher top end?

My `89 20 sf {c.c.} is running a `96 ocean pro 150 @ 365#s. I had a Mich rapture 14 1/2 x 17 BOW lifting prop. On the hole shot my bow would rise to the point of almost losing sight of the ocean b4 planing off while standing. My cav/vent plate was also 3/4" below the keel which would tend to pull down the stern as well.

The mirage changed the whole dynamics of the boat, and that was b4 I moved the motor up 1 hole. It used to slap the chop, now I slice it. The angle of attack is MUCH more acute. The hole shot lifts the stern and the bow shoots forward ,not up! I dont use nearly as much negative trim to keep her down while running , and I picked up a couple mph top end. Lost a little grip trimming up and would blow out sooner.Moved the motor up and got some rpm and more top end. 3 mph total 2 way gps. No tabs or Bimini on....yet.