70 dart 470 ci drag car build.

I went through a few different settings on the 1985 millermatic 35 and found 3 voltage 10 wire speed works the best. But I will need to somehow keep the sheeting tighter to the frame. The way I drilled left raised areas. So I have been careful to hold them down. It's still not going to be perfect. When I get on to the next pieces I'll use sheet metal screws and drill smaller holes.
Clecos and/or Tec screws are your friend. I like tec screws cause I dont have to drill any holes. Put a bunch of em in and pull one out, weld the hole, move down the line.