Is my outboard mounted too low?

[scott craft]

On my alumaweld I've got the cavitation plate around 1.5 inch above the bottom of the boat. I set it by raising the motor about three inches high. I ran it and if the prop cavitated taking off or in a turn I dropped it 1/4 of an inch. I repeated this until it didn't cavitate. It takes some time, but this way you get the max height out of the motor and prop. It's best to do it with the normal load in the boat.