Too many company cars for too long. Just went out side to inspect my coil, now I see why you call it a Pack.
Ignition circuit is on wiring diagram sheet 4. That tells you didly squat.
But, in the mechanical workshop manual, page C-11 is a picture of the pack.
see the sites technical help section, Electrical, for this manual.
No not yet, trying to get a load of things sorted hopfully should be next week, Got the spray bar in ready for connection, so if you see a GTA with chunks of ice hanging from the back it will be me The HKS Twin Power should be fitted up this w-end.