1. Combine first 8 ingredients. Rub steak evenly with spice mixture. Cover and refrigerate at least 2 hours.
2. Preheat grill to high heat.
3. Sprinkle steak evenly with 1 teaspoon salt and black pepper. Place steak on a grill rack coated with cooking spray, and grill for 6 minutes on each side or until desired degree of doneness. Remove steak from grill, and let stand for 10 minutes. Cut steak across grain into thin slices. Heat tortillas according to package directions. Divide steak evenly among tortillas.
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