Engine running rough cannot set mixture

[dn010]

Did you check to be sure the three brass screws are fully seated/closed?

[Dhennick99]

Did you check to be sure the three brass screws are fully seated/closed?

No, where are those located? Can you reply with a photo?

I've attached a photo of the wide needle swing I'm getting on the dwell meter. Any ideas as to how I might remedy this?

https://youtu.be/v_fyilPK32A

[mark w]

No, where are those located? Can you reply with a photo?

I've attached a photo of the wide needle swing I'm getting on the dwell meter. Any ideas as to how I might remedy this?

https://youtu.be/v_fyilPK32A

is the car fully warmed up in this video?

[David T]

Things that can affect the dwell;
Idle speed
Vacuum leaks
Contaminated O2 sensor
Worn ignition system
Dirty, leaky, bad pattern fuel injectors

[Jonty]

I’m picking the injectors are dirty. Unless all spray an equal volume and spray pattern the ECU will chase it’s tail all over the place.