[chewychevy67]

Further down the line the air cleaner has a box similar to this as well but it's different. The lid has a bulb that is heat sensitive. It will only take warm air from the heat stove till it warms up and it opens the door to take fresh air from the cowl /pre cleaner. Kind of cool that this was all available back then. The heat stove here is from a big block 366. I'll have to rework it to look proper on the 327.