Just got a 3 door heater for my 46 that has a 302 engine and a Edelbrock intake. The heater is bolted through the lower firewall like stock. Where would be the best place to tap into a water source for the heater?
What Jimmy Six said. The intake will possibly have a pipe plug in it currently and water pump should have a rubber cap clamped on it.
The water from the manifold should be the "in" bottom of heater core, top "out" goes to water pump. Sent from my SM-G900V using The H.A.M.B. mobile app
Some Edelbrock intakes like this one https://images.search.yahoo.com/sea...-b74b-445c-b977-fa7b48a8b6e7.jpg&action=click Have a water cross over at the back that you could use and have less hose clutter under the hood. If there is enough meat in the manifold you could tap into the aera where the water port in the head is.