I only knew about this because of my part-time job at NAS Miramar auto hobby shop. Part of my job was to set up tuneups for guys on the tune-up machine. I/ we were not smog licensed. Several guys had come in with cars they had bought locally that had been "upgraded." I about sh*t when someone rolled in (this was early 70's) with a 55 chev with this junk installed. Many guys were not "smog savvy." So yeh, we "lost" a few of these
