Andy did you have trouble with the Wenger PCV or was it a stock type valve? I have a Wenger valve in my 493 and it's worth the money IMO.
That Duster looks amazing and those 4.56 gears must be really snappy off idle devil

Gus beer

64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60