RE: Heads and Cam package from mopar
I read in the new mopar mag with the Challenger on the cover that new heads, a cam, and exhaust would put the re-tuned 5.7 somewhere between 425 and 450hp. The power curve on the new 5.7 has so much more potential than the old 5.7 plus they said there is more gains to be had on the MDS ones coming out I believe.
Speaking of power curve there doesn't seem to be a curve, just about a straight shot up all the way through, where the old 5.7 lagged or fell off in between shifts this 5.7 seems to be a real killer.