727 valve body

Later valve bodies have the more fuel economical partial throttle kick down. I myself prefer the valving of little red express or police car valve bodies. Just my 2 cents in an FYI.
Going to use the 2801856 on big block 1965 727 transfer plate and separator plate and then I can use the PTK parts on it , still keeping 65 trans. and have PTK when done. Don't know if you can use the later or not for the conversion , have valve body from 1974 .