I should clarify that re-built injectors were put in. The valve lash was set at the same time which could have helped them to run more smoothly....
Funny... Yes in fact on last trip I was coming up a narrow canal and a boat towing about 10 docks turned across my path... that was both engines...
I have 820's in a 53' Viking recently purchased. It had a very rough idle and at sea trial an injector was leaking severely. We cut the sea...