I asked a question my Vintage Mustang Forum about stepped headers and why they are better/worse depending on the application. One member responded with this article and I thought it was a great read.
I am going to be building the headers on my BOSS 429 clone and even though the header build is still a couple years out probably, I still wanted to understand the differences in header designs. I was surprised how much header design can depend on the heads and cam for a engine. Going to have to do a ton of research on them!
Here is the article: https://www.hotrod.com/articles/ctrp...der-dyno-test/