Rocker arms, how worn is too worn
Currently rebuilding my FE 390. Staying with the stock 2bbl for now and an RV cam (Elgin 966P) and need to know what to do with my rocker set up. The shafts look terrible with deep scratches all over them and will need to be replaced. The rockers have visible wear where resting against the shaft and where meeting the valve. How do I tell if they are ok to use again?