The voltage regulator may be on the back of your alternator ( or on older vehicles the voltage regulator was separate / external )
im not sure but i think they do something special outside
Leave battery lead to alternator connected, disconnect other leads. Run car and check output at these two leads. Should be 14-16 Volts.
It regulates the voltage that your alternator receives and sends! You can purchase a Chevrolet alternator that has an eternal regulator in it and by-pass the external one. You'll have to find out...
It's a voltage regulator not built inside the alternator but is mounted on the fire wall under the hood.