The combination proved to be easily able to maintain 110-115 at 2100 RPM. And it would lug down from 105 up miles burg on I-80 (Ten mile pull) to about 45-60 and round peak torque with room to lug even more lower.
As fast as this dollar rig was, there were shops in the Nation capable of converting any Desiel to a super rig with special mods and these would run 150+ loaded and have such large power loads available as to require Naval Components in the drive train.
My one Waterloo was in Vermont on a 18%-20% 3 mile grade with a 350 CAT. The poor thing rolled slower than a man could walk fully loaded with everything maxed out. It was simple, you either made it or something will break or fail and stall you.
That little kitty made it, but I think the engine did suffer some damage.
To this day I have never seen the dashboard indicate so many gauges in the red during the pull and keep going. Any one of them could have failed at any time.
I beg the Moderators indulgence. Diesel is good when used correctly in whatever mode of transportation but cannot match Steam or other forms of power when used in high speed transit.