very tight fit with power steering, installed the none ceramic coated ones in my '74 duster 360. the passenger side fits fine no real issue there, but driver side is a little tougher. Also, one of the tubes sticks out just a tad further than is hoped for, and the steering column shaft with the coupler on the end will conflict with the tube. The steering coupler is to bulky and hits into the pipe cylinder #5 (i think, either that or #6) Here is the thread on this problem we encountered.
http://www.forabodiesonly.com/mopar/showthread.php?t=41116
To fix that. We bought a coupler from Flaming River that was a cheap fix and works excellent here is another thread on the discussion we had about that too.
http://www.forabodiesonly.com/mopar/showthread.php?t=39913
All in all you will get them in and should clear everything just with a little persuasion.
WARNING !!!! drop center link FIRST before installing headers, only way to do it !
Also, not sure about it, BUT... you might have better luck than us and not have to go through the trouble we did. Who knows !!