A new headlight switch will probably fix the instrument panel lights problem. The rheostat (sp? - dimmer) that controls the intensity of the instrument panel lights gets corroded after 36 years exposed to the elements inside your car. You can find out if this is the problem by twisting the headlight knob back and forth a bunch of times to knock off some of the corrosion and re-establish electrical contact.
My interior lights pulse to, intensity correlated directly with engine rpm. I guess all cars from the 60's had this problem? Anyone know if the replacement regulators solve this problem? I'm used to it and kinda like it!
-red
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