My 70 Dart

Ok, main issue is a molar thats infected, causing a LOT of discomfort. Which means tolerance level is nil. It goes today. On an antibiotic, seems to deaden the pain somewhat. Now on to the business at hand. Did some practice yesterday with the MIG. Won't win any awards, and won't be making a living at welding anytime soon. But it will get me by. Took some pictures, not a good enough close up. Will get better pics later. I have to disconnect the battery and ground the car when welding on it? Someone who has welded on cars before please chime in! I'm going to practice more, want to close up hole without a lot of extra weld to grind off. Thats the plan.