I have a few other posts, just they're not counted in the general section. I have many different Mitsubishis, but was more active on the original forum mightyd50. I see one guy here who copies my posts/information from other sites as if they were his own lol... so I'm sort of here still.

The connector is a one wire plug, not connected to anything. Its fairly big, the same size and shape of the alternator plug.

Use an alligator paper or paper clip to create a good connection to the pin inside, then ground to the intake manifold or block.

I've always set the wheels straight ahead as possible, as per the factory service manuals. The reason is to remove any strain on the engine from the power steering pump so you can determine the correct idle speed. Same goes for any lights/heater/electrical equipment, so the alternator isn't under a load.

Then engine must be at full operating temperature, and there must be no vacuum leaks (check your vacuum lines).

Base timing is 5BTDC on older 4g64's as far as my experiences go.

Marking the crank pulley timing mark with a paint marker, or white will make it easier to see.

Its good that your dizzy is in the middle of it's adjustment range, that means you have the cam timing correct.

-Robert