Is this mess necessary??

im almost complete with my 5.0 swap.. i got my engine sittin in front of the car waiting to be thrown in.. cept im waiting on a new oil pan hehe.. neways ive switched everything over i can think of expect for this.. im am very tired and very out of time.. and dont really feel like pullin off the fender to see where it leads to and wat not.. so will my car work properly without this, or should i just do things right and go about removing it and placin it in my car.. if u cant see the pic clear.. its in the top passenger corner of the engine bay.. right by the ac accumulator..