What cam to use in a 318

Of all people you should know ...
Just say on the mild side ..
Also because cam numbers still make my head spin... I've tried and tried and tried to understand them
I've never understood at what point an "RV" cam isn't an "RV" cam anymore. Or where one starts being an "RV" cam. It's just such a vague description. I think 3/4 cam is more specific. lol