Hello! Picked up a 1990 Ultranautics Sportstar last week to mess around with. It has a 50hp Tohatsu and an aluminum prop that I can't find the pitch markings on it. The boat wants to porpoise if I give it ANY trim. Where should I start? Weight in the bow? Raise engine?

A pic of it from this weekend and the 4th of July parade we participated in.