I have recently acquired a 1988 formula firebird and at some point in life it has had a 400 small block and a 350 turbo tranny. The guage cluster is electric and someone has tried to run the cable before, does anybody know if there are analog to electric speedometer adapters. If I could tie it in to my original harness that would be awesome but I dont know if that is even a thing.

 

Tpiparts.net retrofit Vss id assume there 2k ppm unit

 

Not sure if this will work with the factory buffer box so might need a Dakota Digital sgi-100t as well.