• Tachometer Works With Factory GM Points Or Factory HEI Ignition.
• Aftermarket Ignition System Likes MSD, Accel, or Patronix, May Generates Higher Output Voltage To The Tach Lead Than What A Factory GM Tach Can Handle. Factory GM Tachs Can Operate On Voltage Ranging From 11.2-14.7. Most Aftermarket Ignition Systems Generate Over 18 Volts. You Will Need To Buy An Adapter From The Manufacture Of Your Ignition System To Lower The Voltage To The GM Factory Voltage.

• Engineered to Meet or Exceed OEM Specifications

• OEM Part Number:
• Associated Year: 1969
• Item Quantity Size: 1 EA
• Shipping Dimensions (LxWxH): 5.95in x 5.68in x 4.95in
• Weight: 1.3 pounds