Anyone with small block in 71-72 BBody using 340 hi-perf exhaust manifolds?

[Dibbons]

I mean with the 68-70 casting numbers
2863553 and 3614368. How do the head pipes lead out? Any interference problems? Anyone using the TTI head pipes EB25LE? Thank you.

 

[Russ69Runner]

Here is what I would do call Summit racing they have a good group of people to help ya. I got a 383 in mine. The header's are bad about emitting heat. We think that the original exhaust are big enough just need to run bigger exhaust pipes and better flowing muffler's. Unless your really going to soup it up. Hope this will help Russ.