hey whats up. i have a 66 xr falcon with a 250 pre crossflow in it. was thinking of doing some performance mods (2v head 350 holley exuast system) and was told to change the diff from the standard i6 to one from a i6 ute. the dude said that the utes had higher diff ratio making it better for acceleration, is this true. With the other mods i mentioned would it make a difference.