160 cranking psi; advance the cam or run it?

cranking pressure is a good tool for fault diagnosis as you can compare one cylinder's pressure to the others and look for inconsistencies.

BUT Any cylinder pressure lost or gained at one extreme of the operating range will assuredly have the opposite effect on the other extreme end of the operating range.

Since cranking pressure isn't even taken IN the operating rpm range I would consider it to be a seriously unappealing specification for tuning.

Cranking pressure is a bi-product of an engine combination and it's tuning, not the other way around.