You should be able to get any engine to idle decently clean, but an aggressively cammed engine will need more timing and idle RPM.

Do you have a Holley Double Pumper? These carbs are set up to have an especially rich idle circuit for cars with aggressive cams.

What duration is it/what are the other cam specs? Years ago a cam with a 110 LSA may have been slightly on the aggressive side but nowadays it seems that pretty street able cams are coming with LSAs that tight. You can't determine overlap with LSA alone.

Now I need to pin those needles, got to feel that heat
Hear my motor screamin while I'm tearin up the street