Does anyone know the name of this part of the engine off of the TBI?

First off I have a 350 chevy small block, the part name that I need goes from the front of the TBI and has a hose that goes into the valve cover the hose on mine is all cracked and I would like to know the name of the part and how important this is to the tbi iv looked everywhere and can't find it, thanks and... show more First off I have a 350 chevy small block, the part name that I need goes from the front of the TBI and has a hose that goes into the valve cover the hose on mine is all cracked and I would like to know the name of the part and how important this is to the tbi iv looked everywhere and can't find it, thanks and god bless.
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