Removing the lean burn and adding a four barrel carb and HEI ignition. The junkyard intake is some kind of high rise unit not sure what it came off of. Date code looks like 77 has a big thermostat housing that required me to move my AC bracket to the right side two inches. Big pain in the neck. Intake ports are not as big as other intakes I have used almost same as my 2v heads. Is this a 318 4bbl intake?