My hedmans came with some instructions about how to modify the linkage for a column shifter to work with the headers, but I have used them 4 different times in 4 different cars with column shifters, and I've never modified anything. They went into a 1969 Dart 318/904, a 1972 Demon 360/727, a 1972 Dart 360/727, and a 1972 Dart 360/904. I doubt you will have to modify anything, especially if they are the 1 5/8 headers.