Doug/TTI Headers with Stock K to After K

Hi y'all,

Has anyone used Doug/TTI headers in a stock K frame setup and had any issues with them fitting in the car when swapping to a HDK or QA1 etc?

With all the companies making suspension-specific headers, I really don't want to have to buy new headers. I am looking to get a set of headers that will work with an aftermarket K (PS rack and DD shaftt) and also a stock K that has say biscuit mounts and a stock manual box.

Please let me know what you guys know!
I used the dougs D453 headers on my 408 & 70 Duster and manual steering. I had the QA1 K member. Was the easiest set of headers I ever installed. Only issue I ran into was when I changed to 1.03 torsion bars, so I had to ding some tubes to get enough clearance so they would not rattle.