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