Still working on the timing issue, which maybe affecting the fuel mileage. In regards to the timing, at low RPM's the ignition timing is fluctuating, higher RPM's and she is fine. So it has been very difficult to get the timing just right. I am thinking there is something not right with the distributor. Yesterday the Voltage regulator died...again! New parts these days just don't last! So my we took on off the shelf from the 66' Chrysler we had and it worked like charm.