the retard portion leaks vacuum and there is three solenoids plugged, so I think it's okay with that part plugged. I check on a new distributor and without california emission standards there is not retard portion on the distributor. If I start having problems with emission control I can come back and visit this, but if it passes fine I don't see any reason.
So just to clarify:
1. If the retard portion of the distributor is disconnected it will not make the car drive worse, right?
2. Fuel mileage won't be effected if the retard portion is disconnected, right?