Hello! Due to a very wet, late spring, grad party and house repairs I just now got the cover off my boat and began dewinterizing. I drained it last fall before it got freezing, making sure the drain plugs were cleared with stiff wire until I had nothing left to come out and then refilled with...
Replaced my 3.0 when I put a rod through the side Labor Day weekend last year (glad it wasn't Memorial Day) bought a 3.0L GM marine engine from Michigan Motorz. Did the break in period of 10 hours, have run engine another 10+ hours.
Will not develop rpms above 3700-3800, will not get out of...