Hi all,

I just installed the tic toc Tach into my 68 charger 440. Install was pretty simple, just power and the negative output from the coil. I have the mopar performance electronic ignition installed as well.

With the engine idling, the tach reads 0. It does increase as I give it gas, however the reading is always low.

I was under the impression the tach would work fine with the mopar electronic ignition. Is this true? Are these tachs just not very accurate?