Has anyone ever gotten the 4 cyl. tach to work with an MSD6al or the Mallory? Even with the "Tach Adaptor" from MSD I have never been able to make it work. On my 6 I just had the Tach rebuilt and modified for use with MSD. But I've been asked to help instal two others for friends and never seen a stock tack work after MSD.
Anyone???