when i set the speed limiter higher than factory has it i tested it out and it wont go any higher than before is there anything i can do about that also i cant change the tire size it says this option isnt avaible for this vehicle i have a 01 f-150 5.4l with the edge programmer on dash display

 

U should be abel too.... Do you have an Electronic odometer?

 

Though this is probably not your case, when I took off my 100 mph limiter, it wouldn't go much faster than 106. I'm guessing it's because my OD gearing is too tall, or because the air resistance is overcoming the power of the 4.6L.

Or maybe there is some other limiter in place?