Looks like 1/2" lines. I know ive seen these before in pics of other '14's...
Thanks!

Front oil cooler. Check and see if evidence of mounting in the nose or cut out for AC condenser in the front trunk.

fuel tank vapor recovery hoses

+1

I'm going to agree with the others. My car has had carbs for twenty years and those lines are long gone. I do have front cooler and the lines are 1/2" ID lines. I think the fuel vapor canister lines are about 1/2" OD

Yep, fuel vapor lines. Relo your canister to the engine compartment and run one 7mm line from tank vent to the canister if you want to use that space.