Spark plug read....

Remember that it is probably hot out when you ran the test. A nice cool dry day in the fall and you could be pretty lean. Just to clarify the timing is determined by the ground strap, you want it about in the middle of the bend. I just use a angle grinder and cut the crimp off the plug. Then the ceramic slides out of the top.

You want the timing mark on the ground wire to be closer to the shell on pump gas. He has that pretty close. If the mark is in the bend on pump gas the timing is slow.