You'll have to play around a little to find out what suits you best, but get a ballpark estimate on the time from some recipes and go from there. I'll usually do ribs at 250 degrees for about 3 hrs. Once you get your temp regulated just leave it alone until you get close to the end. I like what someone said one time "if you're looking, you aint cooking." Get yourself a good internal temp thermometer to let you know when they're done. I say to leave it alone, but sometimes I will take a spray bottle with some white vinegar and spritz my ribs about once an hour. It helps keep them moist and I like the flavor.