Prop ventilation issues on my new Nepallo 20

[Natrim1]

I got a new Nepallo 20 with a 90HP Suzuki, but I'm dealing with some prop ventilation. At neutral trim, it vents at full throttle, and with a full load, it happens at various throttle levels. Dealer swapped the 3x13.5x15 prop for a 3x14x13, which helped a bit but it still vents at full power. Any simple fix for this? Dealer hasn't been much help so far

 

[Thepanther]

Not sure, but it looks to me like the engine could be too high. Have you tried lowering it a bit to see if it fixes the problem?

 

[Calm_Wake.Maker#]

Give a 4-blade propeller or a design with a higher rake a shot, it'll help minimize ventilation more effectively than just adjusting the pitch on its own. Before anything else, make sure to check the motor height and the position of the anti-ventilation plate in relation to the hull bottom