I see these quotes. Do they still apply to my 87 Spider? Or is that for older cars?
You can gain about 0.4 volts or more if you parallel the red (output) wire from the alternator. The OE wire is too small (resistance and volts drop) for the output of the alternator.
If so, I just buy another one from the auto parts store and attach it on top of the old one?Can't stress enough the importance of paralleling the wire from Alternator B+ to the left side junction box.