Unless you have a carb with screw in air bleeds, you will need to drill out your factory pressed in air bleeds and relocate them to the metering block, This involves drilling out two holes oversize, tapping the larger holes and installing screw in air bleeds into the metering block to relocate them.
There are several good videos on how to do this on Youtube. One of the best ones is a 3 part tutorial from an old timer with a heavy southern accent.
