Well only 1 or 2 weight cops on this thread. That's refreshing!
Guess a 3500 Dooley won't haul a camper either now if it's not a new mega gvw truck, lol.
Congrats on the "new" truck OP. You'll love driving it with the camper compared to the 1/2 ton!
Never had a 454 that got more than 10 mpg and you're at 9 empty, so with the gears and Turbo400 trans, keep er at 60 or so and hope for about 7 mpg loaded with the camper.
Would cost a fair amount of $ and or time to re gear it, install an OD or another trans, or 6 new larger tires so, enjoy the stability of the dually and drive slow to keep the benjis from flying out of your wallet.
