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The headlights on my 70 chevelle are very dim and i was wondering if anyone had suggestions for new ones? Like any type of upgrade.
It's probably a combination of voltage drop (38 year old wiring and switches) old sealed beams and bad grounds.
Check and clean the brass headlight contacts and sockets and check the grounds are good first.
If still dim ? A new set of headlights (wagner or GE are good if you not going 100% original) and relays will cure the problem, I use a similar one to this
http://www.truckpartsproshop.com/dual_headlight_relay.html
paint it black and mount it next to the voltage regulator (looks stock)
But any two "bosch' Type 4 pin relays will work.
here's a diagram
http://www.humanspeakers.com/audi/headlight-simple.htm
 

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Grounds are critical.

New halogen bulbs can be good.

Relays can help (or new headlight and high/low beam switches).

But the ultimate is relays and bigger wires and European specification halogen H4 and H1 upgrade bulbs. Way cool and you will never think your lights are dim again. See here for an example:

http://home.surewest.net/jahr/ElCamino/Electrical/Electrical.html
 
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