A Body 383 need Header info

Has anyone put in 2" tti headers on a 383 with stock heads and stock stearing. I called TTI to see if it would fit since they fit the 440 with stock heads and the answer I got was maybe. It fits some 383's and other it interferes with the stearing. Just want to see if anyone else hs done it and if so what had to be done or if it fit with out modification. Its hard to believe the 1 3/4" fit without a problem and the 2" hits the steering linkage. That means the the 1 3/4" is 1/8" from the linkage. is that correct.