The Tach bounced a small amount before the altenator was rebuilt. Mostly when I used the blinkers. I had the alternator rebuilt because it bit the dust. Others recently have indicated that the condenser maybe a big part of the problem. The main ground strap from the engine to the frame looks okay. I’ll have to remove it really tell. Also I am having problems locating the correct condenser. Does anyone know of a good source or have a part number?