I know this is a 440 but Nick was having trouble reading low rpm torque on his dyno because it wasn't designed to read that much torque at rpm below 3000.
Nearly 600 ft/lb at 3000 and like most torque curves, you can see them low, they peak, and then reduce with rpm. This one was coming down at 3000 when the readings started. No idea where it was at a lower rpm. It was all about the long ram intake. Lots of low rpm torque, just as designed.