Just a couple questions for all the '73 owners out there in cyber space. If you feel your car is original, please check your car for the following: 1) Does the alarm door switch have the 'SX' marking or not? Opposed to the JG and other publications, I've seen several later production '73 models & up (1/73 & after) utilizing a switch without this marking. As well, the 53-84 G.M. parts catalog calls for two different part numbers for this switch in 73. 2) Does your smog pump have any ink stamp markings / broadcast codes on it? I recently noticed one that was stamped 'AC'on a LS-4. I'm interested in the L-82 especially. 3) In non-A/C cars, does your blower fan work if the two 'wheel' controls are in the 'OFF' position ? Just drop me a line on the 'Board' or directly to my email address. Thanks in advance for your help. Tim - # 26883