How do you install a hood tach on1967-69 Pontiac GTO?

To install a hood tach on a 1967-69 Pontiac GTO, start by removing the hood to access the mounting area. Position the tachometer at the desired location, usually centered on the hood, and mark the drill holes. Drill the holes carefully, then secure the tachometer using the provided hardware. Finally, connect the tach's wiring to the ignition system, ensuring a proper ground and power connection. Reattach the hood once installation is complete.