shift lights are universal, you can tap your tacho signal from either the ECU (EFi) or negative ignition terminal (distributor). Of course the ECU is normally cleaner.
I'm running on a carb myself and if you can run a tacho, you can run this.
Itz need for my GTT (Auto), the original one has broken, and i replace with the manual version(Denso map sensor), power cut at every 4k rpm due to this issue, i have found few halfcut but they are not willing to sell...