I wouldn't be too anxious to get it started. After sitting for 3 years, I'd check it thoroughly for rats nests all around the engine, front spark plugs and manifold and especially inside the heater. They like to go into the duct work through the front hood latch. Often you can see parts of their beds underneath the cowling screen. There's a resistor in the HVAC system that can start a fire if there is debris around it. It's accessible from the front compartment, near the blower motor. Another area on the 86 is inside the rear trunk, far right side. Pull the top of the carpeting down and you'll find a blower motor in there. Varmints like that area, too. They will also get in the tubes coming from that area. They are the 2 silver tubes in the engine compartment. One is pointed at the coil, the other at the alternator. There's duct work behind the carpeting connecting the blower motor and tubes. That should all be checked out.
Should you have any major problems, we have 3 professional mechanics in the club. Of course, they're all up this way, but advice and guidance is available. They all do 3.4 swaps, too.
