1969 Dodge Dart GT Convertible Stock Resto

Work is progressing on the engine rebuild. Currently in the lovely cleaning phase. Amazing how much goop, gunk, and trash builds up on the outside and the inside of these things. Found that oven cleaner works best to get the baked-on tar off.

Posted a cam related question in the Small Block Forum here.

Also noticed the coolant passages on the back of the manifold are blocked (picture 4). Thought it seemed odd, perhaps these are open on a 4 barrel intake?

Also notices an alarming amount of cast slag reaching into coolant passages, head intake ports, and chambers. Took the Dremel to them, hope time spent here is time well spent.