70 Dart Power Steering Box Removal

I want to swap out the factory power steering box in my 70 Dart for another steering box I have. I was looking at the box in the car and was trying to determine what I will have to do to get it out. The car has TTI headers on it. Does anyone know if the box will come out with the driver side header in place? If not, would I possibly be able to get it out if I undid the driver side motor mount and tilted the engine a bit? I'm hoping I can avoid having to take the header out.