hi there!, why not try a shot at asking some pros. I want to install a tach on my 97 GT, just not completely clear on where to tap in into the distributor to get the signal to the tach gauge it self. I understand that the other wires are ground, power, dimmer control. Power can be tapped into the ignition fuse. But the green wire that the tach comes with is supposed to get the signal from which wire on the distributor? Or if it's something else. Thanks