Carb question

[underliner6]

On my new to me K20. The truck starts cold and will idle to operating temp just fine. As soon as throttle is applied and the choke is disengaged, the truck will spudder and stall unless the rpm’s are maintained with throttle. Of course this means it stalls while coasting down the road or when I stop at a red light.

I have read up that it could be a variety of things. I’m inexperienced with carbs and don’t want to screw it up as it has been running good up until now.

Where should I start? Will adjusting the idle screws a slight amount to increase RPM help? Since this happens after the truck is warmed up, do you think that the choke is not the issue or should I try adjusting it? Thanks for any info to help a newb try to figure out this Edelbrock 4 barrel.

Jim