The Mallory Unilite is available with or without vacuum advance. I just bought it with VA. Both are adjustable in terms of mechanical advance, rate of advance, and vacuum advance. I 'assumed' it came with the adjustment tool like they used to. Nope, had to order it seperately, just arrived today. Good luck.
PANTERA INTERNATIONAL
A DE TOMASO CAR CLUB
Presents the De Tomaso Forums
The On-Line Meeting Place for De Tomaso Owners and Enthusiasts From Around the World
Clicking on the banner will take you to the sponsor's website.