I'm still not sure I understand your question.

The cam grinder grinds in the LSA, and there is nothing you can do about that, and that you can simply measure with typical cam degreeing techniques. You'll need to do the exhaust as well. On asymmetrical lobes, the LSA number will change from top to bottom, depending on what reference lobe lift you use.

The recommended intake "centerline" is what the grinder chose and it is the relationship between the intake and exhaust events relative to the piston. No matter how they grind the ICL you can put the ICL anywhere you want. Like LSA, the ICL will change from top to bottom on asymmetrical lobes. Realistically, you cannot tell what the manufacturer intended for ICL by measuring the cam with typical cam degreeing tools.

That said.if you want the cam installed 4 degrees advanced (which seem to be the popular choice on all Mopar forums) Simply measure the LSA and subtract 4 degrees.