94 amp GM 12 SI alternator.
When putting it back in the garage just now increasing the rpm causes the ammeter to show less charging. So the field current is drawing more but output is not going up. Its a little bizzare because in the shop with the engine on fast idle the inductive meter showed the alt could put out almost 29 Amps before dropping voltage from 14.4
However just running with no accessories on was showing almost 5 amps.
That seems like a lot for Duraspark ignition. Coil is supposed to draw around 2 amps. I'm thinking the alternator's self-feeding field may not be working or the something bad in the output circuit.
grump grump