MORE VALVE TRAIN QUESTIONS................

I would not run a preload as light as .010". Only with the right lifter. That is one with the heavy duty snap ring retaining the plunger, instead of the small, inadequate wire clip. With only .010" preload, the plungers can and will escape the wire retainers and the plunger itself can then escape and you will lose oil pressure or worse if the plunger makes it past the lifter valley.