I think that a 240 stick tops out at 85-87mph.... this is against the end of the governor in the pump so you can imagine what the RPMs are. They WILL run 70mph long term but I feel that you are "Pushing" them expecting them to run faster.

__________________
My Truck.. 2007 DODGE, 5.9 Cummins, 6spd stick, 4X4. My car..1977 240D, OTHER WHEELS...1955 VW Oval window bug, European Delivery (Holland) with a 1700cc, 2 barrel, Porsche drum brakes. 1939 WILLYS Pick-up. 1967 Triumph 200cc Tiger Cub. 1976 Honda 550F 4cyl Motor Cycle.