Originally Posted by Chris Peralta

If your never getting the temps up over 190 you either have a bad temp gun or your still very rich. Are you driving it hard or are you just taking it easy? If the engine idles great and does not die you should try leaning the HSN some more and drive it hard. After 5 minutes of hard driving temp it again, then also use a drop of water or spit down by the plug to see if it sizzles. If the water sizzles off your more up around 220-230 and the temp gun is wrong. If it i still cool lean it some more till you have good power and temps up over 200.