It's OK at idle.
Goes rich off idle (on tip in?) before coming back to ~13.5, then can go pig rich on the later end of a good stomp. Even dipping down to low 11s.

I've got a recent log, but the RPM didn't log properly so it's difficult to interpret.

Maybe it's time for a strip and rebuild? It's really like there's extra fuel coming from somewhere it's not supposed to...

And if my memory serves me (and I'm not convinced it does), I swear my A/Fs were to perfect when I first installed the quickfuel metering blocks. The car then sat for 6 months or so, then I've been chasing this annoying rich condition ever since.

Cheers!