Took a couple of pictures of the headers I have. Looks like I need to do some serious cleaning and painting. Basically on both sides I welded 90* bends to turn back to the block and then another 90 to go down between the block and frame. Then a short straight extension is clamped on with a 90 to go rearward and extended to the stock muffler location. I had these 4pieces aluminized and they have held up well for over 30 years.
The rest of the exhaust is SS from CASCO without resonators.