Two years ago, I was experiencing an intermittent miss with my '84 3.2 (53k miles). After checking all sensors and connections, I finally pulled the injectors out, and ran them up to R.C. Fuel Injectors in Torrance, CA for cleaning (turn-around time was 1 day). For $29/ea (total $174), they cleaned my injectors, and produced a before/after report of flow for each one (attached). I have not had a problem since re-installing them. Although, it's possible that simply cleaning and re-installing the connections at the injectors could have had something to do with it. Good luck.
