My brother went a new best 10.90 @ 124 in his basically stock N/A 6.4 2020 Challenger. It weighs 4150 with him in it. It's stock except it has a smaller crank pulley, a lithium battery, bigger injectors and a tune for E85. Wallace calculator says that it takes 636 hp to go 124 in the 1/4 at 4140 lbs. That's a lot of power for a show room available engine without any power adder. Pretty proud of him.