to carry out timing using a timing light:-
1.loosen 2 bolts that hold timing cover on clutch housing at 12 o'clock position and rotate cover.rotate engine until you see the 5 degree mark on flywheel,you will need a mirror and torch to see these marks easily.i normally mark the 5 degree position with a white texta or paint so its easier to see with timing light.
2.cap the vacuum line to disi with a screw driver
3.if your timing light is a clip on type just cilp it on to number 1 ign lead,if its a plug type then hook it up between nbr 1 spark plug and nbr 1 ign lead.
hook the positive lead of light to your starter solenoid which has 12v and the other lead to chassis ground
4.with eng running check timing by looking at flywheel timing marks with timing light and mirror
5.if adjustment required loosen disi and rotate until timing is correct
6.now adjust idle speed
7.with vacuum line connected check timing (using timing light) advances when eng revs up
