I'm using Hooker F body headers on my M body Fifth Avenue. They fit great and didn't require any modifications with a hammer to fit. They actually clear everything. Gaining access to plugs #5 and #7 can be a pain and so can getting to the rear header bolt on the driver's side. They hang a little low, but I haven't had a single problem with that in over 2,000 miles since installation. Three tubes go over, and one goes under.

Here is a gallery of pictures you can judge ride height off of. No really up close shots of the steering drag link though. If you need some I'd be more than happy to take them tonight. PM me if need them.

http://picasaweb.google.com/MoparMullins/070822ExteriorAndEngine