fuel tank lines?

Yup i just completely redid the fuel lines on my 70 Dart...the one line that comes up on the left side of engine compartment on the passenger side, right after the firewall is a return line that goes back to a canister that's generally standing up in the driver's side trunk. In back of The driver side left rear wheel has a little compartment with three screws that hold up a cover that allows you to see the four lines that vent to tank.. I capped off three of the lines and only use one back to the canister to vent it

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Holy crap did they change that much from 69 to 70? Was this from a Cali car?