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If you still have the computer system running stick with the 195. If not it's up to you. But I have heard of some people having problems with the lower temp thermostats
Definitely 180. My '79 had the thermostat fail recently, and I replaced it with a 195 as per what the factory delivered my car with. I later learned that was for emissions reasons only, and switched to a 180 thermostat. I'm betting the one that failed was a 195 thermostat, because now with a 180, my car has never run cooler. I can run the air conditioning and the now and the car runs cooler with it on than it used to with the failed thermostat and no A/C on.
