Yes the timing is advancing . The dwell doesn’t move much at all but it did change a little on my meter . Backfire is out the exhaust . Truck runs really well just has a backfire if I don’t idle a minute . I do need to slow idle down a bit I turned it up a bit but I went a hair much . I had anti foulers on all 8 cylinders and no back fire then . I removed them and now is when I get the backfire . I was using a gallon of 15 40 a day on an 8 hour day tried Lucas junk didn’t help anything so I changed it to Schaffer’s 20 50 for a while then switched to mystic 15 50 and i don’t have near the oil consumption I did
