Fuel tank venting

[loneagle]

Anyone know of a check valve that can be used to vent the stock tank? This would be for safety in case the car rolls over and continues to leak from the vent.

 

[FE3X CLONE]

Can't you just use a vented gas cap?

 

[loneagle]

The cap is vented, but only draws air inward and this causes the tank to pressurize in warm warm weather. I can uncap the vent where the charcoal can used to be, but I'm concerned about a fuel leak in case of a roll over situation. I'm sure it's not going to happen but I'd rather be safe than sorry!