LaWandaJo

I am looking to move up to a larger coach. Currently have a National RV Tropi-Cal 370 with a C-7 Cat 350 Turbo. I'm looking at a Tiffin Phaeton 42 with a Cummins 360 HP. My question is, does the Cummins have more torque? My Tropi-Cal bogs down to a crawl & over heats when pulling up a mountain towning a car hauler trailer with car. Any advice is always appreciated. Michael Swinea Pegram, TN