USE a TIG not a MIG
Well I started on the first set of header I have ever built
and oh boy is it hard to do.
trying to miss every thing that could interfere with exhaust system
My primaries are 1 3/4 “. To a 3.5 “ collector
I started tacking it get together with my MiG welder.
Not a good Choice
A lot of grinding needs to be done and clean up
I will be busting out my Tig welder to Finish of it in to build the driver side one