i have a 93 f250 with a 351 and every morning on the highway i have to put the pedal to the floor to get any power and to gain speed to pass cars. even if im going 70 i have to floor it to get it to 73-75. is overdrive good for highway use or should i take it off.

 

I would use the overdrive if you need it sound's like you need it.Some pepole drive in overdrive all the time.