I apologize if this has been answered but I could not find it. Have a 400 and I wanted to put on some headers and Dougs, hooker, and hedman all said could not be done with a column shifter. The guy at ramairrestoration.com says he thinks it will work with the long branch manifold since these are factory repos. I thought I would ask on here if anyone knows if this will work. They might not have offered the option with a column shift. Apparently, column shift was pretty rare.