I occasionally tow a large car on a transport trailer with my '77 C-20 Chevrolet pickup in my signature. Towed weight is approximately 6,700 to just under 7,000 lbs. with no wind drag issues like RV trailers. Truck has low miles, around 72,000 original. The 454 does great, never any issues with power, never overheats, even in the summer heat with A/C going full blast. I set the cruise control at 65, and just enjoy the drive. Just a great truck all around, although it would be nicer if it was a 4x4.