good advice as I have joined boat diesel.com and learned much about the KAD 44 volvo I have with a 290 volvo leg on a 26' Skipjack ,Yamaha kicker (the diesel does not like to run cold near idle) -very stable boat with engine below decks. I've had a good volvo mechanic who advises along with clean air,fuel, oil that this is not a ski boat-accelerate gently with a 260 hp diesel-3000 RPM-20 kn -6 gal/hr