Car is my friends '86 928 S with 4.7litre V8. It has LH-Jetronic from the factory. LH is fuel only, so spark is distributed by two(!) 4cylinder dizzys!
That's going to change because I threw old engine compartment wiring off and ignition is going to utilize VW COP's.
Car has 100-1 tooth wheel on the flywheel with VR sensor.