This fix will help address this issue for cars with KE Jetronic. One big assumption is however, that there are no vacuum leaks on the inlet boot and the many vacuum hoses. The other big assumption is that the dual fuel pumps are in working order and are both running. Furthermore all fuel filters, distribution block screen, and the fuel return line is clean and have no restrictions.
The EHA Electro Hydraulic Actuator on the KE Jetronic has a small Allen head pressure adjustment that can be adjusted to address the stall or no power when you hit the gas pedal.
Here is the pressure gauge assembly used in this video: https://tinyurl.com/4zfzceyv