76bayflite,
What is your top end with the 115? That's the exact motor (should be) that my CVX 16 came with. Mine is model #115799S. With the OMC SST stainless prop size of 12 3/4 x 21 I get 51 WOT with me (190) battery and gear (60) and full tank (17 gal). I know one thing, the torque on that motor is like an old Chevelle or GTO.