[hiccup]

With a dry turbo & manifold, the QSM engines are nothing like the QSB and QSCs. They can be very temperamental and extremely sensitive to being run too hard. Find a Cummins mechanic who is familiar with these engines and have him perform a full survey of the engines including sea trial. Carefully review fuel burn at various RPMs and confirm the engines are not being run in an overloaded condition. When propped correctly, that is a good setup, but very often they are over-propped.

As for the boat itself, moisture in the hull sides coring is the biggest watch out. Ask your surveyor what he knows about that potential problem and how he would plan to check for it. If he doesn't use a moisture meter and/or a FLIR camera, go to the next guy. Moisture meters can be tricky to use but they are necessary--unless he has a FLIR which is more unusual but can be effective. Best is to use both.

Don't mean to scare you off as they are great boats, but this is the info you need to hear! Good luck!