Should be just like stabbing a piece of meat... with a knife!
Stab the distributor??????
There are two screws that hold it to the distributor.
Clockwise.
yes, as long as the 454 is not a tall deck block.
No need to if the distributor was not moved.
Clockwise
Inside the distributor.
Yes, it will work. If the 454 was a tall deck design, you'd need to shim the distributor up .400" to mate with the 350 oil pump shaft.
The distributor and the oil filter.
no
on this old distributor there is a cap that holds the wires in place on the distributor. Is there a trick to remove top cap?
There is no dwell setting unless you have points. You should have an HEI distributor.