The horsepower and torque figures for a stock 1989 Chevy truck with a TBI 350 (5.7L) vary slightly depending on the exact model and configuration (e.g., C1500, R1500, extended cab, etc.). However, a generally accepted range is:
* Horsepower: 170-180 hp
* Torque: 255-260 lb-ft
Keep in mind that these are factory ratings and actual output might vary slightly due to manufacturing tolerances and engine wear.
