ok i used the search but couldnt really find anything...anyways

i installed some electro luminescent reverse gauges in my car and now all of my needles are not set correctly, i'll be cruisin in 4th gear and my speedometer will read 85 and my engine temp is hot and fuel meter is off and it looks like i redline it in 4th gear.

what i'm basically asking for is how to fix my needles so they will give me correct readings.