410 Duster

X4 - Back in the '70's, Chrysler did some testing and found that if both transmissions and converters are built to the same level/spec, a 904 will be about .15 faster in the 1/4 mile than a 727. I've also never seen a 904 grenade like a 727! Only concern might be in the long term use of the 8 3/4 if the car runs well and hooks hard. But less gear, the better. (No trans brake, I hope.)