Rub (ingredients and amounts aren't critical. Experiment):
1/4 cup black pepper
1/3 cup paprika
1 T kosher salt
2 T sugar (I use turbinado sugar becuase it doesn't burn, you could omit it all together)
1 T each of chilli powder, garlic powder, onion
1 t cayenne
mix ingredients, rub on pork to taste.