Have you considered a 3rd Gen Hemi? They can easily make to power you are looking for.
I did actually, and I love those new motors, but I'm looking for a classic Mopar powerplant with this build. I'm planning to buy a new Challenger at some point, probably a Scat Pack or SRT 392, and I don't see any sense in having two of the same motor in different platforms.
I've been eyeing the 426 Chargers, the Daytona R/T 426 has the sweet spot of options for me. I've got some financials to clear up, so next year I'm hoping to pull the trigger on one.
