bmfakler,
My standard and oft repeated reccomendation is that you wire the PAMCO to a seperate battery and get the engine running before you install the PMA. In fact, do this before you even remove the stock alternator rotor so that you can use the factory timing marks to set the timing. You do not need the stock charging system to be functional to install and time the PAMCO.
Keep the tremporary wiring for the PAMCO when you install the PMA because one of three things will happen when you first start up trhe engine with the PMA installed:
1. The engine will start and the PMA will produce a perfect 14.5 Volts.
2. The engine will start but the PMA will produce zero Volts.
3. The engine will start but the PMA will produce a destructive 20 + Volts and fry everything.
So, as you can see, you do not want your ignition system to be connected to the PMA until you have resolved any potential problems. This to avoid either the engine not starting or the PMA frying the ignition.
Also, I would recommend that you do your own timing. Finding a good mechanic who will work on a 40 year old motorcycle is difficult, and expensive. Follow the instructions for the PAMCO installation and position the plate so the engine will stat. Then, use an inexpensive timing light and the help you will get from the members here to set the timing. Do not buy an expensive pre set timing light as they are not suitable for our modest engine and you will only confuse yourself and anyone trying to help you. Just a simple, basic timing light for about $40 will work just fine and is a lot cheaper than hiring a mechanic.