header options please

Hey guys, I need some help here. I have a 73 Dart Sport with a 400 in it. I just got the car a few months ago and its in need of a lot of work. The exhaust comes off the stock manifolds and is all just crap from the manifolds to the mufflers. I want to grab some headers and redo the exhaust.

Does anyone else have a 73 with a BB and headers? Or know which ones will fit? The stock manifolds were a giant PIA to get and had basically no clearance so I am concerned with fitment. If some one knows a model number or something that would be great.