Changed plugs and plug wires. Car runs great on part throttle, you can rev the hell out of it in neutral with no miss.
as soon as you punch it a cylinder misfire code appears , eventually on all cylinders. Plug wires are seated properly, they click , wires are well seated in coil packs.
I sold my Srt6, this is on my SLK 32 AMG same engine same mods.
Im open to any and all ideas.