So there's heater on the passenger side firewall with two tubes coming out of it one goes to the top of the water pump. Where does the other one go? And what do you think about Plumbing in a valve to turn the heater off in the summer time any recommendations on type of valve? Thanks
The other one goes to the cylinder head in the rear. There is a factory valve screwed into the head in the rear, if you had the heater option. KW has them.