Looking for headers for my 383 4 speed dart

I'm gathering parts for my factory 383 4 speed dart gts and the car has headers on it right now but there rusted beyond repair. The brand thats on there right now are JK headers and I really like how they fit on there. Any one know if they still make these JK headers still. If not whats a nice header that will work on my 383 4 speed dart that will fit nice. Thanks for any help.