What is the correct procedure for tightening critical fasteners, such as cylinder head bolts, using a torque wrench?

1. Tighten each bolt fully in a clockwise circle starting from the front left.
2. Tighten them in the manufacturer's specified sequence in progressive torque stages.
3. Apply anti-seize compound to all threads and torque them 20% past specification.
4. Tighten them using a pneumatic impact wrench until the tool stalls.