Am I running the correct prop???

I have a 242 with 5.7 efi merc with bravo 3. I am currently running with 2 x 24p props. My question is that my boat is a little sluggish getting on plane and only achieves around 3800-4000 rpm at WOT when underway. Usual load is around 2-4 adults, 3/4 fuel and water. I've tried various trim positions but can never get above 4000 rpm. Could a change of prop enable me to maximise the engines performance?


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