best headers for 69 dart?

im really curious about what are the best fitting headers for a 69 dart, i have 2, one 340 4 speed and one 340 auto, and they both have the hipo mani's, one used to have a set of hooker headers but when i would turn the wheel too far the linkage would hit them so i swapped out for the manifolds, but whenever i did i felt a noticeable difference in power, so are there some good quality headers for them that dont have any clearance issues? and do i need different headers between one being standard and one auto? thanks for all your input and happy thanksgiving!
-Mopow3r