Hello, I have my twin cam frame stripped down. I took it to a welding shop to have some soft spots touched up. My question is along the lower bottom edge on passengers side just behind the trailing arm bushing mounts, I have a dent in the frame. It is rounded and looks like it might have been intentional like to give clearance for the oil filter or something. The welder thinks it looks too good to be a dent so until I find out some information he is not going to repair it. The car came to me disassembled so I don't know if there would be a purpose for the relief/dent in the frame. If I knew how to load a photo I would. Thank you for the help.