No clips were used. On the open element and cowl induction air cleaners the PCV hose went under the rear fuel line, around the front of the carb and then a 90 degree bend into the PVC valve on the passenger side valve cover. On some of the dual snorkel air cleaners the PCV hose went around the rear with two clips on the air cleaner while some went around the front and used no clips. I can email you photos if needed.