GL, my money is on the Jeep, but i know ur truck is strong to 60. if u were as strong to 100 as u were to 60 ud be in the 12's for sure. time for NOS or FI! at least he didnt get this: 2006 Hennessey SRT600 Jeep SRT8 - Performance SUV Road Test - Truck Trend
"Long known for its Viper tuning, Hennessey now offers a performance package that allows a Grand Cherokee SRT8 to outaccelerate the ferocious Dodge V-10 Viper in zero to 60 and the quarter mile. In fact, the Hennessey's SRT600-fortified Jeep outpaces a Viper to 60 mph by half a second and crosses the quarter-mile finish line two-tenths sooner than a much lower and lighter Viper."