Get a timing light and check it against the spec. Don't know the spec? Check the manual. Don't have a manual? Get one. There is a beautiful plastic wrapped factory service manual on ebay now for $18 + shipping. If necessary move the distributor to advance or retard the timing. Your car...
To start, plug any carb connection that is missing hoses, then figure out where they would go. Is there a corresponding missing hose to the distributor where a vacuum advance would go? There might be a vacuum diagram on a sticker under the hood.
Is the in-line fuel filter clear? If not...
On a related note: I believe the 3 speed A131L automatic transmissions were used through 2002. Were there other automatics installed? The reason I ask is because I am looking to swap an A131L into my '84 to replace the one that is going out (also an A131L). Just want to be sure they're the...