While not really a muscle car it was in the spirit.
I had a ‘76 crew-cab dually with a 454 in it. Those trucks came stock with 4:56 rear ends.
Have a muscle car of the day pull up alongside at a stop. Stall check it and off at the light. It would beat most of them to 45-50MPH and a few of the newer smogged ones past that.
That old truck was quite the sleeper.
One of moms old HS friends was a former drag racer and later school autoshop teacher. He drove around a junky looking Mazda pickup in which he transplanted a 351 with two 4 barrels on it. It just as well have had a rocket motor jammed in it :-)