TTI headers which ones to use?

I have 1-7/8 coated headers on my 440 in my scamp and they were around 800 bucks (for the internal and external heat coatings)BUT the fit and finish are superb, I installed them on the engine and then installed the engine from the bottom so I am not sure about installing them with the engine in the car. I would say from my experience that with the limited space of a big block in an a body tti is the only way to go if you can swing the price.