This is a new, direct replacement tachometer circuit board for 1978-88 Chevy El Camino, Monte Carlo, Malibu, and Caballero. This one is pre-calibrated for a V8, 6k Tachometer. (Please see other products for 8k tachometers)
This new board will fox most issues with old, non-functioning tachometers. Lifetime warranty.
Instructions Included.