At highway speeds (50+) the tranny is in OD and I pedal down between half throttle and to the floor (for passing or getting on the freeway), the engine revs to 5 grand and then slips into gear instead of down shifting. I am using the hypertech III 93 octane tuning and increased transmission shift firmness.
Yes I plan to ditch it for a troyer custom tune.


4.6L Windsor
4rw70 transmission
151K