stock rocker spacing.

Hey all,
I'm about to put in my new springs and cam, but before I did that I noticed that the rocker arm was a little off center from the valve, then I noticed that I have about .09 inches of gap between the two rocker arms on the number one cylinder. Lot of slop there I'm able to move the rockers back and forth. I dont see any shims present either. Should there be shims in there to make sure that the stock rocker arms are centered on the valve and don't have any left to right movement?

Thanks,
Stu