Holley/Demon Carb stumble

The sound quality is not good, but you can see this doesn’t stumble.

This is what I tuned on tonight.

But you didn't have it in gear:p
All kidding aside hope to get my Proform to be just a little bit more crisp. Going to start with dropping 2 or 3 jet sides.....
Last time i did that. It popped and banging in the exhaust so bad i thought it might come threw the floor boards........but that was when i had the Demon metering block in it.
Hopefully that will get me leaned down enough to start learning how to play with air bleeds or maybe it will require PVCR changed. I know the first step is main jets.

The Proforms o2s say it's richer then the demon and i feel the demon is to rich as well. Demon around 12.5 and Proform 11s o2s when down to 11.0
When it was popping and banging the air fuel ratio was 13.5 to 14.0 at full throttle and couldn't get above 5 grand.

So i think 3 number down is a safe bet?????