Summit headers?
I have them on my 67 Dart. I had them sand blasted, then I primed them with hight temp primer and then coated them with high temp paint. Installation was about the same as other headers where you have to unbolt the motor mounts and jack up the engine to slide them into place. I have manual steering and the tubes are about 1/8" from the steering. They hang pretty low as well. I had to crank up the front suspension to keep from dragging them over speed bumps.
I have them on my 67 Dart. I had them sand blasted, then I primed them with hight temp primer and then coated them with high temp paint. Installation was about the same as other headers where you have to unbolt the motor mounts and jack up the engine to slide them into place. I have manual steering and the tubes are about 1/8" from the steering. They hang pretty low as well. I had to crank up the front suspension to keep from dragging them over speed bumps.