The 17-year-old, who has made 25 appearances for the Pilgrims’ reserves and youth team this season, is undertaking a short trial spell with top flight outfit Norwich City.
United head of youth Steve Welsh told bufc.co.uk: "Lewis is a Norfolk lad and has impressed while playing for his county side.
"People have heard good things about his performances at Boston United too and Norwich City have asked to take a closer look at him.
"We will see what develops."