67 barracuda notchback restoration
The goodmark panels do not have great body lines in them. You are better off to keep as much of the factory lines as you can. For the body line that goes from the lower side of the door into the quarter line it with masking tape on the door and quarter to help with getting it aligned properly as it is pretty light and hard to see. I curved under the two upper body lines when doing mine to keep the factory correct ones there. Also not a bad idea to throw the filler tube in the hole to be sure it comes close to lining up properly. I have heard where they were off a bit on some stampings.