1972 Plymouth Duster Alignment failure

The headers you have look like Hedmans. They totally suck ***. I JUST threw in the towel on a set today after screwing with them for several hours. They were GIVEN to me from a Mopar guy that was clearing out his stash. Even for free, they were NOT worth it. The right side hit at the torsion bar, three tubes were in the way of the idler arm and one wanted to rest against the oil pan. The left side hit the steering box in 3 places and the steering coupler hit as well. The cheap headers are cheap because they are a shitty design. It really sucks that you have to spend $$$ to get good fitment but that is the truth. Dougs and TTI are the best fitting but they are expensive.
Our cars are terrible for these companies. The left side has the trans cooler lines, trans linkage and KD, starter and a big honking iron case steering box in the way. When a company makes a header that fits without having to bash anything, it really is great. After some time passes, you'll forget about the extra money they cost but the quality will remain.