Very glad you will revisit the issue.
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If you mean they won't align closer or further to the body in a horizontal plane, the fix is to remove the individual head pipes and shorten them a carefully measured amount to bring the entire pipe closer to the body at the tip. This worked wonders on mine and gave the pipes a neat, tucked look to the body. It's all best judgement and trial and error. Work slowly, little at a time. It's worth it"
This is much easier if you can beg/borrow a spare cylinder head, mount it on your bench then mount the header pipes and side pipes, just like in the car. You'll see the tips moved out from your bench and be able to measure and see what you need to trim.
Trimming the rearmost head pipes first is where to start. Work slowly and recheck constantly.
It really works.