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I have a 2009 5.7 hemi with true dual flow masters k&n intake and a superchip programmer. It has a 6" suspension lift with 35s I had it re-geared to 4 56s what else could I do to get me some more horses?
I agree with supercharge it if your serious about increase hp. You could also shave off a couple of thousand pounds off the truck--remember it weighs about 5k+.
Jay