If you prefer Champions (most prefer other brands), you would need to specify RN13LYC. The plugs you mentioned are perhaps correct for non EFI cars, I'm not sure. But for an EFI car, you want the "L" in there (it specifies the extended gap plug). The original plug, the Autolite/Mopar 68ER is no longer available, so you need to find the closest equivalent. The Autolite 945 is very close, but these are getting hard to find also. And don't follow your manual as to gap- the correct gap is 0.035". Dick Benjamin ----- Original Message ----- From: <Stan5907@xxxxxxx> To: <mailing-list@xxxxxxxxxxxxxxxx> Sent: Monday, July 01, 2002 11:38 AM Subject: IML: SPARK PLUGS FOR 81-83 IMP > If the chapion plug were avilable what would i want to put in the car RN14YC > OR SHOULD I LOOK FOR RN12YC HELP >