Holley Tuning

Are you talking about the primaries or the secondaries? If your secondaries are open too far and try to close the primaries to compensate for a high idle you might close off the transfer slot.

Read this.

Secondary/Transfer Slot/won't idle down
I’m gonna try this I think I had parts wrong in my head. Also I’m not getting any gas spraying out of the nozzle. Does the engine need to be running for this too work or should it always be ready to spray?