My 84 gn still has stock module and coil pack. Today when I laid into the throttle I noticed some sputtering and backfiring when the rpms and boost where close to the redlines. From reading previous threads I decided replacing coil pack would be a good place to start. To convert to 86/87 coil pack, I just need a new 86/87 coil pack and a adapter so it will mount to the 84/85 module, right? It looks like kirban doesn't offer the adapter, but poston sells both coil pack and adapter. Is that all I need to do just the coil pack conversion? Also, I am aware that I will need to correctly hook up terminals and plug wires.