The car had a 3.54:1 Dana 60 rear and 8.25 X 14 Dunlop Gold Seal tires at that time. This means the RPM was about 6800 at 148 mph. There may have been a little more speed left because, on another occassion, I had been to 115 mph in third gear which read 7000 on the Sun Tach. I got off the gas at the 148 mph because I was less than a mile away from the toll booth on the Garden State Parkway in Westwood, NJ. This event took place about 11 pm while setting a local record for a specific route from Nanuet, NY, to Ridgewood, NJ. With an elapsed time of 10 minutes and 35 seconds, I broke my previous record of 12 minutes flat set in the summer of 1965 in my red 1964 Fury four door sedan with a 426 wedge with a four speed. I sold this car when I replaced it with the four door Hemi. I was much younger when I did these things. When Chrysler stopped building REAL cars during the 1980's, I switched to Chevy's, but would enjoy having a '66 or '67 Hemi today. Relative to tires, during my second ownership of the car, 1972 to 1980, I ran 15 X 8 Mopar police rims with H60-15 Goodyear Polyglas tires and dog dish hub caps, but never exceeded 120 mph.