Even if it has the 250 HP rating it is going to be breathing hard doing anything. The 8.3L with the same HP rating would barely break a sweat.
The transmission locks up so it will hold you back on downgrades much better, it will tend to give you better fuel economy, and it will run much cooler on those long hard pulls on hot afternoons.
Which actually means zip this early in the bidding. My bid will come in the last minute and not before.
Which one are you bidding on so i don't walk over you?