Here is my opinion .... the dart is flat where the gas tank tube is located. I believe (MIGHT) look odd sticking out to far. If you look at my car you will see a recessed area around the gas tube. Now if you found a old 67,68,69 cuda quarter panel you could cut that portion out and have it cut, welded to your car and then paint it. It's a lot of work BUT it would look so professional IMHO.