http://www.musclecaroftheweek.com - Back in 1964, Super Stock drag racing racing was one of the hottest things going, and people loved the competition and energy of stock-appearing cars going much faster than normal. The next evolution was Factory Experimental, a class that allowed manufacturers to get a little crazier with performance parts and special pieces in cars that still appeared similar to what was for sale in local showrooms. This 1964 Mercury Comet is an A/FX car, one of 21 built, and it still retains all the "experimental" speed parts that it wore back in '64, like the 425 HP high-riser 427 and all the fiberglass body panels.