I have a fuel pump plumbing question. 58 with 235 and double action fuel pump. My fuel pump has a connection from the tank (in). A connection to the carburetor (out). Below, left, engine side, a vacume connection that goes to the wiper motor. Below, left, fender side a connection with rubber tubing approx. 8" that is not connected to anything. Do any of you know what this is for. Also, the right mounting bolt has a nipple. Should something be connected to this? Thanks for yor help.
