My car never will be driver to work or on the highway for any distance Around town and the track is really it. In my never ending quest to get my doggy car to go faster I was wondering if I could go to 4 series gears. The engine will pull 6000 plus. I just dont want to run out of engine before I cross the line. My rear tires are bfg drag radials mounted on 16 inch rims. The converter stalls at 2300. Thanks Tim