Adlashwa

On the holden oil pan (front sump), which ports on the side of the pan are going to be pressurized ports? I am hooking up stainless braided oil cooler lines and wanted to hook into a pressurized port. And where would be the best location for the return? Here is a pic of the pan.... It looks like the ones toward the rear of the pan woudl be best but i am not positive if they are presurized or not? I am using this pan on a US-Spec LS1 (not sure either if that makes a difference....)