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EGR Sensor voltage out-of-range , according to my Haynes repair manual
The power of the engine and the maximum speed of the 1972 Ford Torino Coupe automatic are 335 hp and 120 mph (190 km/h) respectively.
It means your EGR sensor voltage is higher or lower then expected during self check.
335 hp
According to the 1999 Ford F-250 Owner Guide :
For the 5.4 liter gasoline V8 engine :
( 235 horsepower at 4250 RPM and 335 lb-ft torque at 3000 RPM )