thanks for posting the instructions, called tpi today & ASK FOR THEM TO FAX OR EMAIL ME A COPY, they said it would take 4-5 days before they can fax them!!!!. the tech sucks, since I have been in the hotrod scene(16 years) they have the worst customer service of anyone, when you call the tech they act pissed to have & help you. also when I have talk to them about the speedo., how they tell you to set stuff up is completely differnt than the instruction sheets. I really do like the gauges & the options they have built in them