We deal with several prop companies and may be able to help you out. Post your diameter and pitch. As far as duo-prop, the drive needs to be a duo-prop drive. I surveyed and sea-trialed a boat for one of my customer's. I was impressed with the performance of a 5.0L in a 24' Wellcraft cruiser. Up on plane without even burying the throttles and a nice cruise as well.
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