gas tank vent?

Have a 72 demon that was originally a /6 225 with the charcoal canister in the engine bay. I put in a 360 and removed the canister but I'm not sure what to do with the line that ran from the gas tank to the charcoal canister.

As it sits the line is still in place running up to the engine bay. I want to remove it completely, but what should I to do vent the gas tank? Just make the line shorter and leave it uncapped or what?