As mentioned above...need the details. Only so the guys can advise best possible answers.
Max rpm wot and trimmed well
gear ratio
max speed GPs wot and trimmed well
Also help to know if it’s the carb or mpi etc and what you want to get out the boat in general. If it’s for water sports and towing for example you can afford to go down a fair bit in pitch and sacrifice top end being careful on the throttle. Some may even advise a specific prop type like a hi five for towing. Etc etc.