Just curious what is wrong with the 741 case. I ran a 741 case with 391's in my Challenger behind 440 w/4-spd. putting out about 500HP and never had any problems
with that rear.
The 741 is not a sure grip. plus I always thought the
489 was much stronger. I do plan on going the stroker route but that's a little farther down the line. Just planning ahead.