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Huh, for some reason the engine size is no longer mentioned in original post, only your quote.
I don't think you'll need or benefit much from a custom spec'ed cam, you have a pretty box stock setup that many off the shelf grinds should work with just fine.
Just expect to deal with a long chain reaction of supporting mods if you choose to go with a lumpy bump stick that has some real lope to it!
On the other hand, if you stay on the conservative end you can't expect drastic changes in sound or performance although there will definitely be improvement with a good tune!