automatic 727 modified / shifting issue?

IDK if a racing transmission will even have a kickdown function as they are usually full manual VB's. The governor weights would control upshifts, not down. Just get a 904 valve body or a later 727 w/part throttle kickdown servo and try it out. Only one 904 VB bolt will not fit, and the parking pawl may not work...kinda important on an A/T!