Wash Chicken inside and out. Mix all the rub ingredients well. Place 2 tablespoons of rub inside bird and shake to distribute rub. Rub the outside with more of the seasoning. Let stand 1 hour. Place charcoal on sides of grill and a drip pan made of foil down the middle. When coals are hot place chicken in middle of grill. Cover and leave for 1 hour and 15 min. Try not to open grill often becasue this lets the heat out and increases the cook time . Open vents on grill to maximum for highest heat. Test chicken in the middle of breast. I like to take the chicken off the grill when it reaches 175 and cover with foil for 15 min. The chicken will continue to cook and will reach 185 which is considered done during the rest time. This prevents the breast meat from drying out.