Picked up a 64 Valiant

Get it hot and pour a bottle of .99 store yellow degreaser into the crankcase. Idle for another 15 and then drain it. **** will come out in clumps. Drop pan and scrape the sludge out the bottom, and soak the pickup tube while you are down there. Reassemble and hit the road.
I used to have some pics in the bottom of some slant s oil pans,,, It would be 2 inches deep! MUD! LOL cleaned them up and if not totally wore out, ran with their usual NO power! but I still love the slant. Ever have a fresh one??? it is great! But still NOT any real power!! LOL