Yeah I haven't had any issue with the factory top plate and my slightly modified '71 B-body non-console pistol grip shifter. It pretty much uses the entire 4 speed opening in the top plate, but I didn't have to cut anything on the top plate. Obviously my entire console is mounted in a custom location which is further back because of the T56. And my tunnel is different too, so it may sit at a different angle than factory as well.
