Hello Bob,
This will go against consensus, but I would keep the cam and set-up you have now and just drive it, at least for a while. What oil and weights did you use? Maybe going to a synthetic HD Diesel Oil, like 5w40 Mobil 1 Delvac or Shell Rotella, will help for a while. If it keeps valve clearances OK. Just a thought on another way to go.
If you do go with the new cam and rockers, I would do a complete valve job, guides and springs too, to get the benefit of the new cam. It's a tough call.
Good Luck.
