My project 1979 Cutlass, LS swapped 5.3 (LM7) with Texas Speed cam stage 2 w/ LS6 valve springs. How can I go about addressing knock retard. I'm having knock in 4,000 - 4,400 rpm range. I have files attached. any help would be deeply appreciated, I've been trying to address this issue for some time now. If there's any other areas that needs attention, I'm open to any suggested adjustments.