360 help

i got my 360 done, it is a 78 model four barrel motor ,im running a hughes whiplash cam 504/515 with matching springs ,locks retainers,and lifters, i installed comp pushrods. the motor have the self adjusting rockers arm with shaft. (factory) . the motor started right up and sound decent other then sounds like rockerarms are too loose too much chatterning . i look in oilcap hole on valvecovers and notice rocker arms are rubbing each other are there suspose to be spacers inbetween rockerarms ?? any ideal on how to quiet the noise up ??