New old '66 Barracuda

After a week out of the country and a week playing catch up at work I finally put together all the parts needed for a manifold / carb swap. The PO supplied an Edelbrock Performer manifold with the car and Monday I received a rebuilt Edelbrock 1406 from National Carburetor (via slezebay). I figured I would at the very least try and make the car a bit more drivable. After pulling all the fasteners and removing the ancillaries I freed up the intake manifold and saw... black sludge. Everywhere. Baked on. :pukeleft: It doesn't even look like oil is making it up to the heads. Did I say everywhere? Covering everything...
Maybe a good reason to move forward on a 340 or 360...
Any input on dealing with a sludge monster?