What year torqueflyte are you working on? If pre 1971 it will shift a lot sooner in mph than the 1971 and later tranny with the part throttle kickdown vallve bodys in them
On all the fully automatic stock torqueflytes the shift points are determine by throttle pressure based off of the kickdown rod from the carb.
My 67 torqueflite is in 3rd before I get through the stop lite.. Yes, if I throttle it up more ( more line pressure?) it shifts later but that's like having a drag race from every stop I make.. Have adjusted the kickdown may times..
Are you saying if I upgraded to a 71 later valve body with the PTK valve it would stay in gear longer??
