Where is everyone running the rubber line coming out of the throttle body. I don't see a return port on the motor for it.

 

Actually, I think you are talking about the two lines that coolant passes through on the throttle body. These are for quicker warm ups in cooler weather. Buy yourself some caps at the auto parts store and cap them off....that way you'll have the cheap thottle body coolant bypass mod that a lot of guys run.

 

Are you talking about the lower port on the front of the throttle body? If so, that goes to the Radiator.