alright i have this major problem my tach dies battery gauge and oil pressure gauge dies this al happenswhen i turn my headlights on and thegauge imlumination is on if i dim the gauges itworksagain but i went overabumblast night and now tach doesn't work at all andneither does the battery gauge and my choke light is on all the time and gets brighter when i turn my custom fog lights on i have tired taking my fog lights off but that didn't help engin runs fine andidels nice even revsup good can't figure this out would begreatly apretciated if anyone couldhelp me out

 

Not sure if this is your problem but it sounds like a bad ground for the instrument cluster. Check your grounds and also maybe pull the cluster and check the tabs on the connector.