That one I don't know for sure, but I can tell you that most all the old ones I have seen don't.
When I was looking for an adjustable no one could tell me if what they had was or wasn't so I had to determine that for myself when I went to get it.
They had a specific part number for the make and model/engine and per any smog states, but nothing about being adjustable unless it was an aftermarket seller like Jegs or Summit.
I sell advance modified Mopar small block reman distributors and they all come with adjustable before I advance mod them with springs and the FBO limiter plates.
