<VV> Alternator Charging Question

[Sam & Marissa Andolino]

Hi,

Our alternator is not charging the battery properly on our '66.  We put a
brand new Delco voltage regulator on.  When the car is running, the voltage
is 12.65 at 2000 rpm with no headlights or accessories (radio) running.
With headlights or accessories on, it goes down to 11.96.

Is this sufficient to power the car, do we need a rebuild, or is something
else wrong?

Thanks,
Sam & Marissa Andolino
mandolin@rochester.rr.com
1963 Red Monza Convertible
1966 Blue Corsa Turbo Coupe