I think my header design idea covered ALL the bases, but never got this much attention.
I am still in the process of finding myself a 73/74 Duster or Dart Sport V8 with Power Brakes/Steering that I will do mock up and tooling on...And I plan on offering a option of either mild steel or T304 Stainless.
Your headers look great perfweld, but I would not pay over $1000 for a set even if they were pure titanium.
If I cannot find a car here pretty soon, I may never get my design off the drawing board.
