A few days before cooking pork chops, I put them in a zip lock bag and completely cover them with the marinade, about 3/4 cup. Seal and place in the freezer - freezing them with the marinade seems to enhance the flavor. The day of cooking, remove from freezer to thaw. If thawing in the frig, be sure and lay them out to come to room temperature before cooking.
Have gas grill heated and have heat about 3/4 of the way to the high heat. Place pork chops on top burner, not on direct heat. Cook 8 minutes on 1st side, turn and put marinade on cooked side. Cook 10 minutes and put marinade on other side. Cook about 3 minutes longer. It is very important to use the marinade as this coats the chops and when you see small air bubbles come to the top, the chops are done. The cook time is approximately 21 minutes, until you see the tiny bubbles on the top. Remove chops from grill to serving platter and let rest at least 5 minutes to retain juices, eat while they are hot.