[AC Cobra]

I experienced the same problem with the plastic fuel tank. There was a brass fitting that screwed into the plastic with epoxy sealing it. The epoxy cracked allowing fuel to slosh out when turning left. I removed the tank and made repairs but not to my satisfaction.

Eventually, I purchased the new stainless steel tank and installed it. The stainless tank eliminates the pickup bowl that extended below the chassis framework, has baffles to limit slosh, and just looks more professional. I highly recommend replacing the plastic tank.