If memory serves correctly the engine set-back will be roughly 1.5 inches with the late K in the earlier car. This was a sneaky Pete thing that stock and super stock racers did for years before sanctioning bodies got wise. Check with your Header manufacturer to see if the tubes are built with this modification in mind. It could be that fender well tubes for a '66-up car are what you will need........


The Old Hippie Hisself