1 7/8" SB-Headers with column shift?

I had a 70 Duster with column shift a good while back.
I can tell you the TTI 1 5/8 to 1 3/4 step headers fit just fine. Never had the bigger tubes on that motor Fun shifting it off the column
That car ran 10.70’s at 3400. 416, mild eddies, flat tappet cam, 727. factory bench seat interior. Probably the coolest setup i have ever had. Sleeper
What motor do you have exactly?