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Have you replaced any components or have any codes? Why no cats?
Is the vehicle running or key on engine off
I take it that your foot is off throttle? Can you take another picture? Turn off engine, turn key on. push accelerator to floor. take picture
Ok on bottom of engine is a knock sensor (pic attached). Can you unplug it and drive and tell me if it is better?
There may be 1 on each side and unplug both if so. I attached a picture of location
Ok. Just wanted to rule that out. My suspicion is the gear on the bottom of your distributor is worn. Remove distributor and inspect. The new gear is brass usually and lasts longer.
Let me know if you need further assistance.
Do you have a fuel pressure gauge?
Does your scanner monitor long term and short term fuel trim?
What are you long and short term fuel trims when acting up?