If your using aftermarket or reproduction strips, then you would want to test-fit them. I like to start at the front of the tank and work back. Also, check the strip holding tabs and adjust them close to the new strips. After your tank is painted, the strips will install hassle free and you can bend the holding tabs over with your thumbs to secure them. This helps to avoid the possibility of a scratch or chip on your new paint. Click on the photo for a larger view.