Spring/Keeper interference with Rocker

n the video is that hold down bolt loose?
stock rockers should be fine
mark the way the shaft notches are
check the rest of your rockers keeping the in orider
check the cups and check the shoes and where they ware on the shafts
check the shafts
need new contact rocker arm specialists in anderson ca
check the ends of your pushrods
I would not use new rockers with worn pushrods
cheers