And the battle continues...
Everyone will give you a different answer- because each car and each driver is different on "how" they can get to, and "where" in the rpm band they start and hold the desired power and torque. There is NO definitive answer.
Only you and your car can find out what works best for your setup.
The .63 housing has been known to hold target power more effectively till redline, as where the .48 housing is quiker to full boost, but falls off faster at the top end (where the V-8s catch up to some of us)
Only though trying BOTH will you know what works best and what your Dodge likes the most.
Stay away from general ?s like-
"what car is the best out of ALL the cars made?"
You will always get a question right back, or an answer like-
"Dodge, of course"
Just givin you a hard time...