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I’ve got an 06 5.9 with a Firepunk stage 2 trans 188/220 cam 100% S&s injectors fleece flow pro 750 2nd gen swap with fleece 463, and efi live tunes. I’ve had a 68, and a 72 both billet and had two different guys tuning the truck. My problem is that the truck is lazy down low the 63 don’t spoil...