ok the the first solonid in the front has a t fitting, one goes to the regulartor in the attached picture, not the one on the fuel rail, and the other goes into a black plastic box attached to the underside of the intake manifold, it goes into the box and exits and loops and returns into the intake manifold. The second soloniod in connect to the regulator on the fuel rail and the other line connects to the manifold. dont know what that black box is under the manifold it is attached too.