I cook spare ribs at 275 - 290 and wrap after about 3 hours. I cooked 3 slabs this past weekend and took a slab over for my 85 year old finicky Dad. He Loved them. That was all the encouragment I needed.
No sauce or glaze on them either. Just a savory rub.
Operation BBQ Relief Founding Member - I am Obsessive Compulsive about BBQ. Google it.