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X2 to the above
The heater T's were supposed to have been done with the WP, TB.
Thanks for the input.
This reminds me of a leak I had, back of the water pump, oring seals the pipe to the back of the pump. If it leaks, or anything in the valley of the v8 engine leaks it will drain to the back of the motor like this.
Had water pump done recently by the previous owner, shop did not replace the oring. Leak was only noticeable after parking on an incline as well as smell.