do mean mechanical timing or ignition timing?
ignition timing:
1: remove the #1 cylinder coilpack and loosen the CAS bolts.
2: i use an old spark plug wire off my KA but you connect it to the plug and put the the other end into the coilpack. So your completing the spark but now its running through a spark plug wire.
3: hook up your timing light to the wire and adjust the CAS from there. Stock is 15 degrees.
This is the way i been doing it ever since i owned my car and works great everytime. You can use the timing loop at the back of the coilpack harness but when i use mine it reads like 10-15 degrees advanced so it throws everything off.
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