Mustang Wiring Question
 

ok guys bought a tach today...it tells me to hook up one of the wires to the (-)Negative on my coil...anyone know which wire this is?

http://store.summitracing.com/global.../SUM-G2907.jpg
here it is....the back light on mine is red

It should be the Dark Green wire with a Yellow tracer that goes to the coil. To be sure, unplug the coil, and use a flashlight to look for the "-" and "+" markings.

Take care,
-Chris