Inliners International Forums General Discussion Engines Mallory's new adjustable vac. distributor 235/261

I understand what you intent is, but there is allready a way to get what you're after.
If you convert a later six (250/292) dizzy for use in the 235/261, then you can get an adjustable advance, I believe Moroso makes it. I have such a setup currently on my 261.

It would take some tinkering, but it could be adapted to other dizzys as well...