Another header questions... Sorry

What fact have you seen about TTI? I have used Sam's headers since 63. If they say they will fit, they will fit. Any shorty header will cost mucho HP. Call TTI and talk to them. The same with Dougs. There is so much misinfo on the internet, talk to the source. Some complaints are because the frame is tweaked or it was a Friday car. You may have taken a loose nut on the end of the wrench as fact. I may be wrong but then I'm only 72 with a little more than 50 years experience.