The American manufacturers don't go by gross hp, they completely changed to net hp in 1972. Net hp for the 1985 Chevrolet Corvette is 230hp.
Horsepower ranges from 230HP-250HP.
Horsepower is not a unit of mass.
345HP
190hp
240HP
350HP
300HP with the base L75 327ci V8 and 350HP with the optional L79 327ci V8 (these are gross horsepower ratings because they didn't switch to net horsepower ratings until 1972).
Depends on the year...
505
345 HP
345HP
405hp