What are these lines?

I would run a vapor canister like the factory did if possible. It just traps fuel vapor so it doesn't smell so badly you walk by your car when it is in the garage. Its for emissions obviously but I like the fact that when hooked up properly, you dont smell gas all the time.

Nothing sucks more than getting into your car and breathing raw fuel fumes in the garage. Or parking it at a Sonic and smelling raw fuel while you eat your chilli dog with your fancy lady.

Burnt 100 octane on the other hand is like a man's perfume. Lemme rephrase that. Burnt 100 octane smells great and should be made a car air freshner.

So the charcoal canister, it runs up to the carburetor canister connection I believe. But you could route it to the air breather behind the air filter somewhere if you like so it would have a subtle vacuum on it. The only issue would be verifying if the vapor canister has a built in check fire valve before the carb port. SlantSixDan knows all about this canister process from what I have seen.