Please tell me if I have this hooked up correctly. Should the heatern return hose connect back to the throttle body on a 86 305 TPI setup. It connects at the lowest water hose connection on the passenger side.

THanks

 

You should have a ? shaped hose from the heater core to a hardpipe that runs down the frame rail and then another hose that runs into the radiator. Then you should have a line from the intake manifold into the bottom of the TB. Then there should be a hose from the side of the TB to the other heater core line.

The TPI cars with an oil cooler have the hardline feeding into one side of the cooler, and the other side continues on to the radiator.

 

Like this?