Schumacher tri-y headers

You will need to alter the headers if running a stock manual transmission set up.
Just curious, how much or what had to be done to make the clutch linkage clear these..?? I reworked a set of headman 78030 for a low deck stick set up. 71 swinger. Took a number of in and out of the car sessions but came out pretty good in the end. Manual steer though don’t think ps would go at all. Passenger side was pretty much a bolt in..Swingn’