Hold on, lets stop the hp arms race, we know where that will end wink I believe these are targeted at the high end bracket engines, say a low 7 second rail for weekend big dollar brackets. 1000hp . I have never built a Mopar at that power level but have built 590" 9.800 deck, 636" 10.2 deck Chevys and someday will finish assembly on a 665" 10.72 deck Chevy. A 700+ " Chevy requires a 11.1 deck block. I don't think that would be cost effective at 1000hp. Just my 2 cents.