1963 Pontiac GTO/LeMans/Tempest HOOD TACH WITHOUT NAME ON FACE - YENKO (5000 RED LINE RPM 8000 RPM MAX)

HOOD TACH (5000 RED LINE RPM – 8000 RPM MAX) GM STYLE RETRO SUPER CAR YENKO COPO HIGH QUALITY (NO NAME ON FACE)

TACHOMETERS WILL WORK WITH FACTORY GM POINTS OR FACTORY HEI IGNITION.

WHEN USING AN AFTERMARKET IGNITION SYSTEM LIKES MSD, ACCEL, PATRONIX, ECT.

A LOT OF THESE SYSTEMS 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 TO 14.7

MOST AFTERMARKET IGNITION SYSTEMS GENERATE OVER 18 VOLTS.

YOU WILL NEED TO BUY FROM THE MANUFACTURE OF YOUR IGNITION SYSTEM AN ADAPTER TO LOWER THE VOLTAGE TO THE GM FACTORY VOLTAGE.