When you head up to the Heights for your noontime fix at the new Truth BBQ, bring a side of patience along with your appetite. Stevie Ray Vaughan riffs ringing from the speakers will help you shuffle along in the slow-moving line, which forms at the door well before noon on a weekday. The best of the meats (offered with two sauces) are the brisket and the garlic beef sausage, but truth be told, there’s not a clunker on the chalkboard. The sides of corn pudding and tater tot casserole are a bit dry and bland, but the coleslaw and mac and cheese are top-drawer. These folks are serious about their trade; as you wait in line, check out the ten massive indoor cookers that keep the place hopping till the ’cue runs out.