To be absolutely certain, you should:
1. Consult your owner's manual: This is the most reliable source of information specific to your Concorde's year and engine.
2. Use a repair manual (like a Chilton's or Haynes): These manuals contain detailed diagrams and instructions.
3. Search online for your specific year and engine: A Google image search for "[Your Concorde Year] Concorde engine bay" often reveals pictures showing the coil pack's location.
Be cautious when working near the engine. Always disconnect the negative battery terminal before working on any electrical components.