Engine knock code

alright so I'm battling this damn knock code. Truck has 275k miles on it. Before I tear apart the intake I want to cover my bases. Checked continuity threw wires and no continuity. Hooked meter to wire and grind taped on the engine and showed voltage. All was running fine until I went off road the other day. On my way back it threw the code. Along wif maf sensor. I changed the maf ran good for a little bit and then tree it again. I just compression checked all cylinders and are between 200 and 210 so I don't think its internal. Must be some type of fuel delivery issue. I have the 320 lph fuel pump. Bigger injectors. And I'm supercharged. Could it be the fuel pressure regulator? I checked the iac check valve and in working order. Spark plugs look fine. I'm at a loss here. It's running 14.5 in non boost and when it goes into boost it was running 12.3. I can't really tell now as it keeps retarding. I don't want to bypass as I don't want to kill the motor. I can't find any vaccum leaks.

Any help would be appreciated.

 

Found the issue just externally mounted the knock sensors and running like a champ again.