You can watch all the video's you want and it will give you the general idea of how it is done. Under hood time will get you good at welding. No way around it. You can fine tune how hot the weld gets with wire speed along with the amperage setting.
Here are some pics of my Turbo Piping for my 67 Dart. Damn I did a lot of work to that car. I just looked at all my pictures. Holy bageebers batman! Lol
This is Stainless Steel to Aluminized/Galvanized using a Lincoln 110 Machine, .030 cheap Harbor Freight wire and 75/25 mix nothing special.
