Just get a vortech kit or turbo. the kb for are 5.0 cars are horrible, they dont make anything larger then 2.1 they overheat very easily do to no real intercooler setup. they are only good for low end torque they dont really make much power very pathetic numbers for a blower. ive seen built heads cam 5.0 cars with a 2.1 kb be lucky to break 350-400+rwhp.