I hope not to intrude with no experience as an owner, but I would love to have a hemi motor, but alas only have stories for now.
Several years back my brother invited me to a crawfish boil, it was more of a house warming party for the owners' workshop. He was Chrysler through and through.
He had a 70 Charger, 528 KB block, high rise single plane intake with Indy heads. No idea on the CFM, but single carb, pump gas is what I recall. The body was crinkled in the rear from the torque it could lay down.
He had a few other mopars that were impressive, I might have spied an RB 383 in the corner, but couldn't be sure. It was probably a 400.