Those particular tti's fit very well in my brothers 67 383 4spd. The ttis are all designed for a certain application.
The Doug's are a one size fits all . And some of the comments are coming from guys with RB experience.
RemCharger, when you say those particular TTI's I assume you mean the TTI 383440-134 that I mentioned at the start of this post.
Does your brother's car have power steering?
Based on the comments I'm getting from all responses, I do get the feeling that BOTH choices will be good.
Today I'm leaning toward the TTI's 383440-134 because
1. My big-block building days are far from over, and this particular header will fit both. When I build the next RB, I can reuse the headers but will need a mini-starter.
2. The TTI's appear much more precisely manufactured from what I've seen. I ran a set in one of my earlier '67 R/T's and had no problems with fitment. That car was a 4-speed but manual steering.
3. Very proud to buy/support American. Mexico OK, but still feel better about parts made in USA. I can go on about the subject but won't.
4. Originally attracted to the Doug's because I thought the stainless was a good idea. Thought a little more and decided to nix the stainless.
5. I know that TTI does a good job packing their headers. I've read comments (not this site) about Doug's headers arriving damaged. What a pain in the *** would be to deal with. If I scrape or dent or drop something from the bench OK, I can own it. But if I pay big dollars to get something that's beat-up before I open the box, I'm not happy.
Thank you to all for your comments.