What tranny for a 318?

904 is the answer. A 727 takes close to 50hp to turn while a 904 is around 25hp to turn. 904 also weighs less. The 904 can be built to handle almost anything you can throw at it.

A local racer dropped 3 tenths in a change from a 727 to a 904.

I even once sold a 727 to a guy that was from behind a /6. The buyer said he really wanted the 727. I don't know why you'd need that for a /6...but hey, it was his $$ and time. Yes, argue all you want but they did make a 727 for the /6.