0 at idle and almost 35 at cruise....you need to put bearings in it. Period. The shame is that on most things you have to yank the engine to get room to get the crank out, pain in the butt, but I hope you have a garage and a engine lift. Sorry, I know its not what anyone wants to hear. Just look at it this way, your going to be heading off a major problem, such as a spun bearing.