727 b&m shift install question

Not normal at all. I guarantee it'll trash the trans real fast. You can pull the valve body out and check it over real careful to make sure everything was done properly when the kit was installed. If so I have no idea what to tell you to fix it other than yank it out and put a Trans-go kit in. I quit using B&M kits a long time ago due to their inconsistency.

BTW: I assume the trans. worked properly before the B&M kit was installed??