Mopar Muscle Association UK

I have a problem with one of my tank breather pipes. Sometimes,after a run the pipe drips petrol under the car. It's pre evap.control so there's two pipes out of the tank. One runs up through the boot floor and goes down into n/s chassis rail(remember that if welding). The other pipe runs up to the boot floor,turns 90* for 3 inches then turns 90* again and points down towards the road. This is the one dripping. All correctly set up as per FSM drawing. I'm worried that it could happen parked on a show field and someone drops their fag butt underneath The exhaust runs nowhere near the tank so, it's not heating up.

The one goin into the chassis rail could be blocked , causing the other one to syphon out the tank , when the fuel is sloshing around.

That figures,does it after hard braking. On the case tomorrow