I have a Headache.... Need some insight into Exhaust...

I have a 340 4spd in a 64 dart. about 40 yrs ago nobody made headers for this app, so my friend, Art, talked me into building the headers for my app, by ourselves. We bought some SB mopar headers for some other app., along with a box full of mandrel u-bends. We cut off the tubes about an inch or two from the flange, and shuffled some of the tubes, combined pieces of the u-bends, drank some beer, worked all night, and voila one-off headers!