I've got a problem with the headlights on my 68 RS/SS. The lights work but their dim. They've been that way since I rebuilt the car. As far as I know I got all of the ground wires connected. From what I know, dim headlights usually mean a bad ground. Could it be the headlight switch or relay? Also, the vacuum doors don't work well. They will barely move about 1/2 inch and then stop. I put a hose kit on the lights and it didn't help much. Is the headlight switch notorious for leaking or should I look somewhere else? Thanks,Matt.