Today I installed an Autometer brand tachometer. It very simple to hookup since the tach signal is taken from the HEI distributor connector. The interesting thing was finding a place to mount the tach without it obstructing to much of swept dash instrument cluster.

Everything worked out as planned during the installation. I did find a negative regarding the placement of the tach. When I use the left blinker I can barely see the indicator so I will inadvertently leave it on since the canceling mechanism is not functioning properly.