Need help with 1975 Duster /6 to 440 conversion

The headers is a problem, especially with power steering and if it an auto on the column, and then the center link, trying to get a BB between the fender wells and clear all that on the drivers side is almost impossible, some brand headers just won't make it, maybe someone will chime in and tell you what headers is best, myself i finally gave up and went stock manifolds.
I have ps and the Schumacher's clear easily but are not cheap. Recommend wrapping them to get rid of some heat.. Biggest *** pain for me was the fan motor. There are a few different mods in the how to area. Not a cheap project to take on, but to me well worth it.