which timing, valve timing, or ignition timing? ignition timing, the mark is on the crank pulley or underdrive pulley. you will see numbers and markings on the bottom timing belt cover above the harmonic balancer/ud pulley. valve timing, there are marks on the cams, little notches you have to look for , you will see them, just look hard.

thats what they look like and you need to line them up like this