Does anybody know what hose #3916380 (It is an air cleaner to valve cover elbow hose) is for what application and years 1967-70 Z-28? and if so I would sell it for $4.00. I have had it for 20 years. It is 4 inches long then 90 degree bend and 3 inches. The second hose #3959486 is listed as 1971-72 Camaro with BB engine. It has GM and part number on hose. I know #3973193 is listed for BB 1970-72. Any help would be great. Thanks John.