Dyno video of my brothers Twin Turbo 1977 Monza Spyder. Has a 355 Small Block, Accel DFI, Gen 6, Dual TPI Throttle Bodies, Intercooler, Twin Turbos using Gale Banks turbo manifolds, Dodge Viper T56 6 Speed transmission, Ford 9" Inch rear, with 4 wheel disk brakes. Ran out of dyno time, but made 497.66 HP and 530.01 Ft Lbs or Torque at 7 PSI. Better description later.......