Might get a bit messy

Most Olds engines I've seen have non adjustable rockers, they use a bolt that is torqued down, from the factory they have an aluminum pivot that is prone to wear, if your hearing rocker noise I'd take the covers off and inspect all of them, if you have replaced all that with an aftermarket adjustable setup you can disregard what I just said.

gregb is right(non adjustable) on my olds I picked up the  adjustable kit, but I prolly could have got by with just some slightly longer pushrods.

thanks 2sav i just bid

i did, but 7 is better than none