I ordered an aftermarket air cleaner kit from Ground Up Restorations. I have a RS/Z28 with the ZL2 hood. With the air cleaner with the extention piece installed the hood does not close. Is it possible the people at Ground Up Restorations gave me the wrong kit, or pieces of the wrong kit. They sell chevelle parts, could they have given me some chevelle parts. Are there parts of the air cleaner that are interchangable with the 70 - 72 chevelle and 69 camaro. Is there a way to check if you have the right pieces. The Ground Up People can not tell me right now.