Ron I am responding to the list since this is a subjuct that can effect many. If you should place a single snorkle air cleaner housing next to a double snorkle unit you will see the location of the double snorkle in-let tube is more than just adding a second tube X distance to the other side of the cleaner. The second tube is also without the heat stuff and attachments. You may go to ebay and type in Chrysler BB; Chrysler 440; Dodge BB; Dodge 440 or MoPar BB etc ( you get the picture ) to look for a factory unit that matches your car year. The early units have C.A.P. and non-C.A.P. Expect to spend about $ 75 for one of these. Rodger & Gabby 47 De Soto Custom 63 Le Baron 66 Le Baron