Quick Fuel Slayer Rich!!!! installed LC-1 wide band

yeah, dont buy jets yet. Idle mix is in the air bleeds. if you want to lean out your idle (outboard bleeds) then you INCREASE the size of the bleed jet or orifice. Does your carb have a air screw under the air cleaner stud? That can be turned to adjust idle speed while keeping the transition port square shaped. also you dont want to get out of the 1-2 turn idle screw adjustment zone. use the bleeds to alter that. The wideband is the ultimate carb tuning tool .
"...If you want to richen up the idle simply replace your idle air bleed with a smaller one (less air in the system = more fuel = richer idle), this will help you get your mixtures screws within the 1-2 turn range..." Carb Class: Air Bleed Basics - Holley Blog