We're having trouble calibrating the speedometer in Dan's rpu too. We have read the directions 10 times and done exactly what they say, but it still reads 30 mph or more off. I just got off the phone with Stewart Warner Tech and they are going to speak to engineering and call me back.

Don has the same problem with the electronic speedo in his T, he has tried to get it calibrated for 3 years now and still no good. That is why I either don't put one in my car at all, or leave it disconnected, like in my 27. I go by tach readings or just go slower than the rest of the cars around me.

Don