Fuel Return Line - Do I Need One?
The filter you speak of is still available and it works like a charm.
We did confusedcuda's car a year or so ago and he has not had a problem with VL since.
http://www.forabodiesonly.com/mopar/showthread.php?t=201864
there are probably several threads on this here.
Check out post #3 for a pic.