[A Cobra guy]

Not sure where the filler neck goes into the tank on your car but I had a gas leak 1 spring. My filler neck is connected to the tank buy a large piece of tubing. I have it double clamped on both sides. After siting dry for a winter the first fill up of the year gave me a leak at that tubing. Tightened the hose clamps and all has been fine since.
Just 1 more thing on the spring checkup list.

Harvey R