I would definetly go with the suggestion of backing off the rockers so the springs aren't compressed. I didn't do that when I sat my motor up for about 2.5 years. I primed her up real good till I got oil up to the rockers. Well I finally fired it up and spun the 3 center cam bearings. Learned my lesson. Now I did have a solid roller with some pretty stiff spring tensions. Lighter springs but not be as bad, and who knows the engine might have spun the cam bearings even if it didn't sit up for so long. But it sure can't hurt to back them rockers off.