camshaft break-in

The only way oil gets to the lifter faces is being tossed off the rotating assembly. That's why i's imperative that the new engine fire immediately, and that you preoil, and that it not be allowed to idle. At idle there's not enough oil volume to"fling" off and get the cam suitably covered. Also in terms of lifter rotation - this should be checked as part of the assembly process. As long as the cam is turning, the lifters should rotate. If they dont you will eat the cam in short order so it's not an rpm based thing. Turning the engine by hand the lifters rotate.
If you have true dual springs - meaning an inner round-wire spring plus an outer round wre spring with a flat wound dampener between them, you have to pull the inners for cam break in. If they are just single round wire spring with the flat wound dampener you break in the cam with the springs "as-is".