Are you looking for info on how to use the stock ones with larger than stock rockers?
A spacer will help.
If you want to up grade to a different cover. well that list is long and some are pretty pricey.
My personal fav for stockish look and fit is the CJ covers.
A set of the Pent steels look great also.
I also like the cast pents with the fins milled off. Very Kool looking.
And on and on...