I just recently installed a 5" Autometer tach. Everything seems to work okay so far. However the 5" tach is reading about anywhere from like 500 to 1000 RPMs MORE than the stock guage. I know the stock gauges suck butt and are often off....i'm not new to that fact. But 1000 RPMs?????? I hooked the green tach wire up to the yellow/orange wire going into the MSD coil. I know it is negative cuz it says negative on the inside of the connection.
Any insight??
Thanks
Chris
*edit: removing dumb statement
Any insight??
Thanks
Chris
*edit: removing dumb statement