904 Trans for 500 HP?

Hi Guys,

i´m thinking about switching the TF727 in my Valiant to a TF904. The 727 does need a rebuild in the near future, as far as i read the 904 is lighter and does have less internal loss - means more power to the wheels and better ET´s....that´s what i´m after.

I run a 408ci SB with around 450 hp / 450 torque (no dyno numbers, could be little more in reality). best ET 12.2 with 109 mph now, still tuning.

So i´d like to rebuild a 904. What internal mods beside quality overhauling parts should i consider to beef it up? The car will see 20 - 30 dragstrip runs a year, maybe 2000 street miles a year.

Please share your knowledge, thanks!

Michael