Have you thought about switching to a roller cam?
All you need to run one is these:
I know it seems pricey but to me it's $400 insurance against wiping a cam lobe and wrecking your engine in the first five minutes. You'll probably also need new valve springs, but as has been discussed, you might need those anyway.
There's probably 3-5 common roller cams that will do what you want and most of them you can find used on Corral.net.