Turning a 74 into a 72

Looking really great stan :)
how come you going to use a 904 trany insted of a 727 ?

Because I already have a good 904 and if I went to 727 I would have to have my driveline modified.
With a mild 318 the 904 should be fine, it's actually a little lighter then the 727 is and I think has a lower first gear also.:D