Turns out my settings and resistor value were correct but the sending unit failed.
Saw a article about a kit manufacturer abandoning the VDO units because they’er not generally reliable due to heat and vibration and that they’er actually manufactured by a third party for VDO. Installed a new VDO unit in the Van’s sender manifold on the firewall and insulated with firesleeve. I plan to try to eliminate some of the vibration with a short hose from Tom at TS and a floating type unit support at the next condition inspection. New one works great with readings to a fraction of a pound. It’s always something.