Stumped and Frustrated with a Holley 670 Hesitation

So, I also picked up the other carb today, a QFT Slayer 750, to try out. Man is that carb light compared to that other one. So I got that one installed today as well. I did some minor adjustments on it, fuel level, idle, and a rough A/F setting for the moment.

I watched the squirters on the QFT, they look to be squirting the exact same as the 670. After playing with the squirters for a bit I started the car up. I started reving it just to listen and when I start to give it gas of course the rpms come up and then I cracked the throttle. Holy responsive!!! The 670 carb just didnt seem that quick to respond. So from a idle I decided to crack the carb and it bogged out right away. I did that a couple times and then got a back fire thru the carb.

It didnt like that at all. But if I eased into the throttle so that I was just off idle it didnt seem to do that at all. Only at idle did it bog right away. I remember watching a video that inertia posted or it was one after I watched those 2 that talked about this so Im going to do some quick research and see what would be causing that bog and then back fire.

It was also raining on and off so I didnt actually get to take the car for a drive and see how it did with the QFT.