What cam brand is being used?

No matter who you get it from its likely just going to be a stick of cast iron. Myshelf I usually have a conversation with Ken at Oregon cam grinding and we just grind whatever we decide. There's no set duration or separation or lift that you have to go with when you go to a custom cam grinder. make up your own numbers and your own custom cam like I did "one off" you can do exactly what you want. My-2