Ok I get you guys like 904's but if thier so great how come they never came behind a big block or a hemi? As for parasitic loss inside the 727,buy an alum drum and your now even with the 904,plus you have a stronger trans. And I think that rather than using an actual 904 behind a big block,racers simply use 904 internals in a 727 case.It's an expensive route from what I understand.
