Pork Tenderloin Fajitas

Name: Pork Tenderloin Fajitas
Ingredients: 1 tablespoon packed brown sugar; 1 tablespoon paprika; 1 1/2 teaspoons chili powder; 1 1/2 teaspoons garlic powder; 1 1/2 teaspoons onion powder; 1 1/2 teaspoons coarse salt; 1 1/2 teaspoons ground cumin; 1/4 teaspoon freshly ground pepper; 1/8 teaspoon ground allspice; Two 1-pound pork tenderloins, halved crosswise; 2 tablespoons herb and spice rub; 1/4 cup fresh lime juice; 1/4 cup olive oil; Vegetable oil, for the grill; 1 red bell pepper, quartered; 1 yellow bell pepper, quartered; 1 poblano chile or green bell pepper, quartered; 2 medium white onions, sliced crosswise 1/2-inch thick; 2 bunches scallions, trimmed; 18 small flour tortillas; 2 tomatoes, seeded and finely diced; 1 red onion, finely diced; 1 cup coarsely chopped cilantro; 1 1/2 cups sour cream; Chipotle Salsa; Pico de Gallo