Hi all! My first post at this nice forum after lurking for years. I have a stock 1979 360 EH1 with 42.000 miles, one owner and complete history, newer rebuilt. It has an annoying slight misfire at idle that I have tried to track down for a couple of years, without success. Pulls fine and has no misfire as soon as it leaves the idle state. Facts: Newly rebuilt original Thermoquad Mopar stock electronic ignition New spark plug wires Timing 15 degrees initial without vacuum Softer springs in distributor according to previous owner Full vacuum advance 727 transmission Maximum 18" vacuum in neutral and 16" in gear Vacuum fluctuating with the slight misfires Tried troubleshooting: Pulled plug-wires one by one, all seems to be working Adjusted idle-mixture for best vacuum Here is a video of the engine at idle, first in neutral and then in gear: Now I have run out of ideas, any help is welcome!