Early 99 F250 4WD w/7.3L PowerStroke, auto trans, 356,00+miles, K&N FIPK 2nd Gen Cold Air Intake; 4"Turbo Back Exhaust;

Need to replace injectors on my Early 99 F250 with 356,000+ miles and original AB injectors. AD injectors are here in stock and AB would have to be ordered after the New Years. If I put in 8 AD's what would the change be. I should mention I tow either a 28ft or 39ft 5th wheel occasionally and like to keep fuel mileage. I would like to have this done before I leave for trip the Friday to South Louisiana but would have to use the AD injectors and just don't have and idea what the difference to the operation of the engine would be.
Thanks

 

no difference except extra like 10cc of fuel capable so and extra hint of power thats it...