1/12 is still my favorite class of all time.
We had this indoor track inside a small shopping mall, the track was pretty small but we were getting 5 to 6 heats of 1/12 with most of drivers racing mod class. We were running 13, 14 triple like the tri-sonic from Reedy, Maxtec, and Trinity D3 & D3.5. One driver was running Corally handwound mod motor, I still remember the clean winding. Even though the track was small, we had sedans 27 turn stock and F1s 27 turn stock. It was so much fun back in those days.