RE: HEMI test drivers lookie here...
That awesome! I really can't imagine 425 full injected horses. Looking at the torque / horsepower ranges on both engines, they seem a bit similar. Neither engine goes under 300lbs of torgue through the entire rpm range.
One thing that I did notice is the 6.1 horsepower continues to increase all the way to redline at 6,000. Max hp with the 5.7 is reached at about 5,000 rpms. Most engines begin to fade near the redline including the 5.7 but the 6.1 does not, thats scary.
The decision is an easy one, the 6.1.