Fuel tank

Ever since i had the Opel back on the road there as been a problem that if you took a left-hand bend quickly there was a real smell of fuel. Initially, i thought it was to do with the breather hose maybe letting fuel vapor out as you do get a bit of a slosh and you can then see some fule sitting in the pipe but after swapping it for some proper stuff from a go-carting supplier with some nice hose clips it was still there but i could never work out what was causing it as i could…