e30

Second run, clean log.

First run with bad timing and knock

Stock Intake + KN High flow filter installed; BOV Diverter Valve Spacer Removed

New plugs

After cleaning injector tip and replacing seal and burning through a fuel tank of fuel injector cleaning and adding a new full tank of E30 mix. Does not appear to be leaking at end of this pull, but still lots of knock on cyl 5? What else could be causing this? Should I be concerned? Do I still need a new injector for 5?