Ok. So I just I just replaced the stock 302 in my wife's 94 full size bronco. We replaced it with a rebuilt high out put 302. Got it mostly together and tried to start it. I noticed when I tried to start it water is spitting out through a 3/8 tube located just above and to the left of the upper air intake hole. I looked at a 1990 bronco which shows this is tied into the heater hose line via a tee. Mine did not have such a tee. Does anyone know where the other end of it attaches to?

 

Sounds like the Throttle Body heater.

On my 1994 351, the lower (input) of the TB heater is fed by a hose from a port on the water outlet (the thermostat is below it).

The output (top) of the TB heater has a hose that runs forward to where it becomes a 3/8" steel tube, that then runs across the top of the radiator over to the drivers side right near the radiator filler neck, where it goes back to hose, and connects to the radiator filler neck at a plastic nipple on the neck that was made for it.