Haven't used them, but the notes on them identifies you cannot use the clam shell motor mounts and manual trans. What are you using for motor mounts? IMO they seem somewhat expensive for a set of shorty's.
Looking at your original picture in the thread, it looks like you have an automatic trans if I my eyes aren't playing tricks on me.
Nope, Muncie. I also have stock clamshells. I've seen some headers say that before but for many they work fine. That's why I was asking