Gary reported:
As for MPG, I would have thought that running right on 14.5 would give good MPG, but we only got 10.6 MPG on the front tank, and that was mostly at 55 to 65 MPH.
But, it used to get 11 to 12 MPG in those conditions with a worn out engine and no overdrive.
Gary, have you checked the accuracy of the speedometer/odometer since the transmission swap?