[briphaeton]

Yes it's has vacuum advance running off the vacuum port of the weber 32/36 carb (probably both centrifugal and vacuum) and averaging 25 plus mpg (fordor sedan). The distributor has around 28 degrees advance. The mechanical advance is not connected. I learned of this 25 years ago from the Nor Cal FAST club hill climbs. Charlie Yapp's front drive distributor uses a VW distributor. It's timed just like a Mallory Distributor. I've only looked under the cap a couple of times all of those years.