A mid '70s 440 dual-snorkel air cleaner was a perfect stock-looking addition to the 360, fitting perfectly in this application. M-Bodies already have cold air induction for the left snorkel. To feed cold air to the auxiliary snorkel, a hole was cut in the right fender apron. The right side cold-air duct was made from a chunk of another M-Body's plastic air duct. The system looked like it could have been O.E. when done.