It must have had a Q-jet on it. They came out in 1966. You have to watch on those early manifolds. They had heat riser holes going up to the base of the carb. If it has those you will have to put a plate over them. If they are not sealed you can get vacuum leaks & exhaust leaks. I like the late 70,s early 80,s Q-jets. Get one without the electronics. Put an electric choke coil in it with a shield in front of the choke to keep cold air from blowing on it.
