hi, <br />I have a 19 ft 81' ski supreme. the boat is in great condition and is fast, but everytime I get up to about 30mph the boat lists to port and rides tilted on the port side. Now when I get up to about 40 to 45mph the boat starts to cavitate. Now I know the old tournament boats are weight conscience and like to cavitate at high speed when it is alittle rough. <br />I just recently found some small pieces of would from in the bilge.. It might be the rear port stringer. could this be causing the boat to list to port at approx. 30mph???? can someone give some suggestions.... I was thinking oh trim tabs..