Hi - I have a similar question problem. I am new to the speed boat scene so please excuse me if I get a few things wrong.
I recently bought a Four Winns H180 running Mercruiser 4.3L MPI (WOT 4400-4800) on ALPHA 1.62 with an alum 3 blade 14.25x21P prop. Went skiing and had slow out of hole...
