Header Help Please

My cheap headers, Patriot by Dougs were under $250.00 and they fit with no modification at all. I put them on a 74 Duster with a 360/904, and power steering. They are very close to the steering coupler but that's all. I did install them from below with the motor, K frame and all, is that where the fitment issues come in? Is it just getting them in initially?

Cley
I can get them in and they are bolted up but hit damn near everywhere. Have a link to these headers? I am pissed I may have to buy another set but that looks like the only option. They aren't hitting the bottom side of the ider they are hitting the inside. It has 3 pipes that go under the drag link and one pipe that goes over. Where the pipe goes over it turns and comes back down pretty much at a 90 degree turn and it hits there.