LA 360 high idle

The condensation alone created from sitting in a bag in your truck for a yr. or more would be more than enough to bogger up your internals.
My rule of thumb is if it sits for more than 6 months regardless of storage try my suggestion in post #6. Have had successs with that technique with multiple eddys that have sat. If that is a no go after trying rebuild it or replace it.
Eddies are simple carbs. to rebuild or relatively cheap to replace.