Whats the best time for a factory stock duster 1/4 miles ??

I knew one guy with 68 4 speed 340's Ran in the 12's. Stock. Nobody believed them either, but he did. I know mine was in the high 13's with 100K on the odometer. That was with the original dual point distributor and a valve job. No one else in the area was as fast. But I was a freak about tuning and carbs. But the other 340 cars typically ran low 14's with 3.23 gears. 4.56's were a whole other ball game. The darn things really came alive!