Fuel filler neck

70 used the same vent setup as 69. I did the same for my 72 Dart. Wanted the 1970 18gal versa the 71-up 16gal tank. The fill hole is about an inch off between the two. Also the hole in the trunk floor and the boot are also different. @Matt2000 welded in a new hole in the trunk pan. I haven't decided what I'm going to do. I have the 18gal tank with the 70 vent but the boot isn't working out.