All I know is two years ago Leo and I met up with the Fredericksburg caravan.
In 55 mph speed zones, I hit 70 plus at times just to keep up.
All the stop signs and a steep hill didn't help much.
But, the 7.3 with about a 7000 pound load, did keep up.
Blew some black smoke a few times.
We have yet to see what the 7.3 will be hauling east in a couple months.

Don

1967 GMC 9500 Fire Ladder Truck
"The Flag Pole"
In the Stovebolt Gallery
1946 2-Ton grain truck
1946 3/4-ton pickup,
1953 1-ton pickup
1957 1-ton flatbed dually,
1954 Pontiac Straight Eight
Of all the things I've lost in my life, I miss my mind the most!