Guys, I got a new F-body radiator from my local auto parts store to go in my 78 Salon. Its the replacement one with plastic tanks. It has a nipple on the right tank for a heater hose. I want to connect one of my heater hoses to it but which one does the F-body not use for a small block Chevy - the water pump nipple or the intake nipple? I've got to plug one of them but unsure which one.