I had a 85 chevy truck that I used to pull my car to the track that would run high 13's and it was no where near 500HP so 14.20 is a lot lower than what it should run IF like I said you can get it out of the hole and shift it right. I also had a 66 chevelle that I don't know the HP or Torque #'s but it was all steel and had a 355 with 10.5 compression 64cc heads with 202 1.60 valves stock block,crank,rods a vic jr intake,750 double pumper carb, a solid stick with 544 lift and around 308 duration, turbo 350, 488 gears with a 3000 stall and it ran low 12's on motor and 11.20's on a small shot of nitrous. I know it was no where near 550 hp except maybe on the bottle.