[Paulporsche]

You will need a dwell meter to set the dwell. Make sure it is hooked up correctly and is set to 6 cylinder. You can use this meter for setting idle speed.

A gas analyzer (such as Gunson) will give you the correct settings for CO. If your idle hunts or if the engine feels choked off as you approach redline, you are set too rich. A too lean condition has symptoms of the engine feeling too easy to rev and a light colored tailpipe. You will need a 3mm allen wrench to set the CO at the screw which is located down in the hole on the top of the mixture control unit.

You need to hook up a timing gun (light) to set the timing. You are right, changing the dwell changes the timing. If dwell was and is now within spec, it shouldn't change, but it is prudent to check.

If you do some searches, you should find the correct procedures in detail.

Good luck.

Paul