I picked myself up a completely stock 1994 1.8 miata to replace my 1999 miata that got pwned by my brother. the 99 contained an MS2 full standalone unit built by braineack for a turbo application.

I dont plan on starting a build with the car yet, but the question I'm currently reading up about is reconfiguring the MS2 for the 94 miata. The engines are similar, but a few sensors are different and I haven't confirmed if the wiring is the same.

EDIT: found what I was looking for. google kept sending me to the sale page on DIY auto tune until i searched exact phrases. :/

resolution: they share the same N76 plug collar, but the pinout is different. wiring tables are available here