1 7/8 headers on 69 dart?

Is anyone running 1 7/8 tti headers on a small block? The unknown brand 1 5/8 headers that I took off when I started this project were awfully tight. Just wondering how they fit. I now have trickflow heads, not sure if that will effect things
I put a set of 1 7/8 hooker headers on my 69 dart 340 with x heads back in 1971 and still have them on they are tight on the drive side but they fit