Lean pop off idle?

I borrowed a carb from someone and all of the issues went away. At first I was going to rebuild this one, and get a tuning kit for it, but between work and classes, I just don’t have the time to figure that out. Thought about ordering a new carb, but didn’t want it to end up the same way. So I made the expensive decision to order a Holley Sniper kit. Slapped it on and it runs amazing now.
Thanks