The pork loin can be prepared and cooked many ways, from higher heat, to low & slow, from whole to stuffed, brined or not, to sliced into thick boneless chops...here are a couple of my favorites for the whole loin:
a pair of half-loins on my
weber kettle with indirect higher heat, and two simple dry rubs, found
HERE;
and, brined, whole loin, low and slow smoked, found
HERE.
I prefer not to stuff, inject, or otherwise tamper with a whole muscle meat when cooking low & slow. That leaves you with far less restricted temp/time issues to deal with regarding the danger zone for non-intact meats. I have stuffed loins before and liked them, but I prefer intact. Now, boneless pork chops? Oh, yeah, stuff away, baby!
Eric