I have a 04 21xdc with 04 250 xs. Can’t raise my motor over 1 3/4 below pad with out my water pressure dropping below 12 psi. Every thing I read on here says 3/4 or 1/2 below is the normal. It’s a gen 1 lower 1.62 Running a 26 trophy plus 5450 rpm. 78 mph anyone got any suggestions?