Headman Fitment issuse... help??
FWIW, I swapped from manual steering to power steering with Hedmans on my 360. One of the pipes comes very close to one of the steering box mounting bolts but does not touch and the headers clear everything else with no issues.
I would recommend pulling the steering column (really does take much time) and un bolt the box until the header is in place but not tight. Then bolt the box back up, then the headers and lastly re-install the column.