Now that I have the New Fuel pump with the vacuum booster installed how is it plumbed into the vacuum system to assist the wipers. The booster has 2 ports one marked in and one marked out. The truck has a 90* hose-barb fitting at the intake manifold which is split at a tee one to the trans shift solenoid(turbo 350) and one to the wiper motor. there are two ports on the wiper motor, but I am only using one and it works this way (just not well).

Jessica's Truck

The true definition of insanity:
To do the same thing the same way repeatedly and expect a different result each time.