How do you tell if the convertor is too loose? I noticed my datalog indicates I crossed the finish line at 6100 rpm in 3rd gear with a t-400. My mph was only 128 mph. The datalog show a shift at 6500 rpm from 1st to 2nd with a drop of 600 rpm. I cant tell the next shift cause the most I see is a drop in rpm of 200rpm. On 1 run I let off cause the shift light never blinks off after the 1st shift at 6k. I stll run a 10.8 at 115 mph. The convertor is a 4500 stall. The rpms never drop below 5950 rpm after my 1st to 2nd shift untill the end of the run. I have 3.42 rear ratio and 28 inch tires