Ok, as far as dealing with the current issues, I would clean the throttle body with throttle body cleaner and a rag and would use Seafoam to do a fuel injection cleaning as follows which will also clean the valves and intake manifold:
You will need a can of SeaFoam cleaner, a funnel and ahelper.
Disconnect the large vacuum hose at the brake booster(this goes directly to intake manifold). Have helper crank engine and every few seconds, goose the gas pedal to keep engine from stalling. Stick funnel in end of disconnect vacuum hose and slowly pour contents of Seafoam into funnel.( It will smoke white out the exhaust when doing this, which is normal for this procedure.)
Once done, reconnect vacuum hose and drive for about 5 miles at hwy speeds to finish cleaning out carbon.
the above will clean carbon from valves, intake manifold and injectors.
Not related to the issues, but with how long it has sat, you need to flush the cooling system and flush the brake fluid as well, use silicone lubricant to lubricate all suspension bushings, grease the balljoint fittings, remove the brake calipers and lubricate the caliper hardware and slides to prevent seizing, check the pads and if rust on their surface, use some 120 grit sandpaper to lightly sand their surfaces.
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