Even new valve cover gaskets never worked on by b2000 so instead of wasting $20 on a new leaky gasket I went around the old leaky gasket a couple of times with teflon tape to beef it up a little.

Same with the spacer between the fuel pump and the head.

The O ring between the distributor was flattened so I filled in the channel a little with teflon tape as well so it would seal better.

The truck doesn't leaked one drop.