need air cleaner help.

See here for a picture of a 72 "trap door" air cleaner...


http://www.forabodiesonly.com/mopar/showthread.php?t=141690&highlight=trap+door


http://www.forabodiesonly.com/mopar/showthread.php?t=121525&highlight=trap+door

See here for the "heat stove"....

http://www.hamtramck-historical.com/images/dealerships/DealershipDataBook/1972/72_Charger0016.jpg