Fuel injection, stereo with amp,dual electric fans, h4 bulbs, twin cooling fans, ac. My squareback is fine until I turn on the lights or ac. At idle it barely keeps up to the fans and efi.
Let me just say that a larger alternator does NOT NECESSARILY put out more power at low speed than a smaller one. Years and YEARS ago, "in another life" we had a huge big thick book on Delco alternators with RPM/ vs output curves for their alternators.