Tubular k vs factory k

Ok 67 barracuda had 273 with hooker headers and stock stearing box.
Installed frame connectors 360 and dougs headers also tried borgeson box header hit both boxes View attachment 1715958509 View attachment 1715958512 View attachment 1715958512View attachment 1715958513View attachment 1715958514

Are Dougs designed to be used with power steering boxes? I thought they were a manual steering only deal.