the cam sprockets have a key way on them they can't be fitted wrong unless the keys are snapped off you normally have to turn the exhaust cam clock wise to get the key way to fit the slot
if you dont have the keys in your sprocket then that cam timing could be anywhere may have even cause some damage
z22yh exhaust sprocket on has one key the z22se has 2 like above and so will the z20net with it using the same z22se main chain kit or is that the z22se now uses the same kit as the z20net :s
