69 273 headlights wont turn on

OK. A web search shows that as one of several kits that sometimes had to be put on used cars in California.
Agree that if you can legally remove it, do so. Someone may want it, so you could try to sell it. It will probably be a slow sell.

Important thing is to understand what it is supposed to do so you can then return things back to factory.
From pics this post we can see there should be a coolant temperature sensor as well.
Find where the vacuum hoses with question marks connect.
Most likely one is connected to a vacuum source, maybe a ported vacuum source, and the other connects to the distributor's vacuum advance canister.
If so, then when removing the emissions device, simply connect the distributor vacuum advance to the ported vacuum nipple on the carburetor.

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