Just sold my '97 F350 manual. Edge programmer gave it lots of power, but with the manual shifting it was harder to utilize the extra power effectively.

Went with an '06 duramax for towing and the difference in both towing ease and power delivery with the allison trans. is very apparent. Better mileage both towing and empty.

I did test drive and '01 F350 with the 7.3 and a complete Bully dog package, pipes - intake - programmer with and automatic. Truck mileage computer said 18 mpg and man this truck would flat out go.