'65 rally pack tach wiring - Ford Muscle Forums : Ford Jun 14, 2015I'm trying to hook up the tachometer on a 289. It's the original tach from the "rally pack" kit that also had a clock. I have about 10" leads from the back of the guage, but that's all the original wiring I'm working with.Author: Axelg89 1965 Mustang Wiring Diagrams - Average Joe Restoration 1965 Mustang Wiring Diagrams. March 10, 2014 Mustang Wiring and Vacuum Diagrams AverageJoe. Where is the ballast resistor located for the ignition system in a 65 mustang, 289 2 barrel. This car is burning up points fast. Tom — July 8, 2013 9:46 PM .