Originally Posted by Dave Hall
The accepted start point is to have the engine pull down to peak torque after the shift. If this is a typical Mopar with a big, straight, bada$$ torque line, the car may like high gear ASAP. shruggy
I like this starting point. And it reflects what Cab said about the converter effect on shift point.
My converter guy said the converter should pull the engine down to max torque at the shift, assuming a certain RPM drop.

1993 Daytona, 5.50 at 130mph (1/8) 1.19 sixty ft (PG). Link to 572 B1 - Part 1