Which wire to disconnect during compression test?

[yellowbullet]

I can't believe I forgot this but while doing a compression test, besides taking all the spark plugs out, which wire do I have to disconnect? I have a vague memory that it's something between the coil and distributor? Any help's appreciated!

 

[Tom M]

You can disconnect either of the low voltage connections to the coil (small wires). That way no high voltage is generated. Do not just disconnect the high voltage wire between the coil and the distributor and leave it disconnected. The coil can be damaged.