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I'll assume you are making baby back ribs. Using the 2-2-1 method smoke at 235 and you have it. Watch them after the two hours in foil for that pull back, they may need less than one hour back on the smoker.
Everyone has their own way of doing ribs, and you need to develop yours. Take a few minutes or a few hours and read through the many posts regarding ribs and come up with a plan. Then, if you don't like the results, come up with another plan.