I made a mistake when i said 86. Frank's range in the data given is 32.15 to 71.76 normalize it to start at zero and it's 0-39.61. Your range is 15.69 to 76.08 which means your range normalizes to 0-60.39 which is way wider than frank's. but interestingly Frank's throttle blade never actually goes to 86 so i suspect there's something actually limiting physical travel of the accelerator pedal in his car. as silly as it sounds, like they possibly designed the pedal travel without the carpet in there or something like that.
Frank, can you take the intake pipe off your car and seeing if your throttle blade actually opens all the way on your car?