Tank's INC Vent/Rollover Valve

vent set up , doesnt puke gas out the filler neck when filling , lika new
This is what I was going to say. On my 69 Dart the vent line loops above the filler neck inside the trunk then runs thru the filler neck floor pan gasket to the outside. From the factory like this.
THE STOCK SET UP ON A 68 FASTBACK DOES TOO, BUT THE NEW ONE I HAD PUKED GAS EVERY TIME I FILLED IT , THE EXTRA VENT W/ THE LOOP STOPS IT .