hey guys, i got a big problem, i think. it started a few days ago. i have a '71 521 and the ign light came on, headlights are dimmer when it is on. but at 3000 rpms or so the light slowly goes out and you hear a yeeeeeaaaaart sound from under the hood. Voltage Regulator?? Alternator?? Ground??? stock everything besides electronic ignition, and weber carb. no stereo or nothing , any suggestions would be great!!!:blink: