My 70 Dart

I have a cool neighbor. He's letting me use his portable mig welder. It's from harbor freight, MIG-100 model. Saw link online on it in operation. Found out it's not good for what I want to do. Well, I don't know how to weld anyway. Ignorance is bliss? I did find out I need to have both pieces of steel the same gauge. The 22 will burn through before it will weld together. It is touchy, I did get some welds to hold, but I need a bunch of practice. Now if it was a ford........who would care? I will look for some 20 gauge tomorrow. I can do it with more practice. Seemed to work better with a faster wire feed speed. IDK. More later. Thanks.