I had the classic old car gas smell for years. It was fairly strong and always made me wonder if I had a gas leak somewhere. I checked the canister, the lines, and the gas cap (those do wear and need to be replaced), but the gas smell never went away. When I switched to an efi setup the gas smell went away. Now it is a bit expensive but if it bothers you it might be the solution. You get other benefits along with better fuel economy, usually more power from an extremely accurate tune, and drivability especially on long road trips where you’re going to be changing elevation. They also have somecost effective options like Fitech and the Holley Sniper.
If you’re feeling bored one winter, I’d recommend cleaning up your gas lines, as long as they’re in decent condition. That would really suck to have a line rust through on you like Graham’s. A few winters ago I was doing an engine swap and had the fuel lines disconnected. Cleaned them up with a red scotch bright pad, polished them, then clear coated them with POR 15. They turned out very nice and it gives me piece of mind knowing there isn’t any rust working it’s way through them.