Idle circuit recalibration kit

Recalibrate your idle circuit for proper idle. Many commercial remanufactured carbs have been altered to make them idle rich.This kit can help you get your idle dialed in. Pair of idle pickup tubes with collars. Pair of down channel restrictions Precision drill bit set Idle tube and down channel restriction sizes are not one size fits all for the restriction. There are many different restriction sizes from factory production. If you are unsure what size you need, please message us with your carb number and engine details. We can suggest a size. Larger orifice size produces richer idle mixture. Instructions: idle tube replacement: CLICK HERE Down channel replacement: CLICK HERE You will need to make sure your idle bypass air passages are not blocked in the main body.