My dad gave me his timing light, but it has been so long that he used it that he lost the instructions and book. It has three wires and is a gun type 12 volt light. Any ideas how it should be connected? Do I remove the vacum advance when I time it?

Help - lost and out of time....


Bruce (I love My Truck) Miller

1954 5 Window 3100 Chevy Pickup - Driver
1929 **** Model A Pickup - Restoration