I have a bbf that keeps losing oil pressure, after hard runs. spun bearings on one last year. changed to 10 qt rr sump pan, high volume pump, windage tray and last weekend lose oil preasure again have not torn down yet but suspect same thing. Any ideas? I'm new to jet boats. here is my theory jets are not made for long runs and when catching air it over loads the engine causing bearing failure. open for ideas. Don't what change to chevy this year.