Chevrolet Repair: setting valve springs, rocker arm, rocker arms

Question
i have 1995 lumnia with 3.1 how do you set the valve spring right

Answer
Rocker arm nuts. ADJUST
Valves when lifter is on base circle of camshaft lobe:
The engine should be in the #1 firing position. This may be determined by placing fingers on the #1 rocker arms as the engine assembly alignment mark on the front face of the torsional damper aligns with the arrow on the front cover.
If the valves are not moving, the engine is in the # 1 firing position.
If the valves move the engine is in # 4 firing position and should be rotated one revolution to reach the # 1 position.
With the engine in the # 1 position, the following valves should be adjusted:
Exhaust - 1, 2, 3.
Intake - 1, 5, 6.
Tighten the adjusting nut until there is zero lash, this can be determined by rotating pushrod while turning adjusting nut. When lash has been removed, turn adjusting nut in 1.5 additional turns (to center lifter plunger).
Crank the engine one revolution. This is the # 4 firing position. With the engine in this position, the following valves should be adjusted to zero lash plus 1.5 turns :
Exhaust - 4, 5, 6.
Intake - 2, 3, 4.