I agree. It it a V10 truck motor (lol) designed for torque. Nitrous is torque in a bottle. You'll see similar numbers in most V8 Stroker applications as well. My brothers 414ci 351 based Stroker made similar numbers on a 150-160 shot through an automatic.990 was the initial hit # and then it dropped and leveled out.
Vipers torque with nitrous is always 1-2 hundred higher than HP depending on the