Ben,
You should be fine with an initial advance of 8-10 degrees. Figure a total advance for a SBF at around 34-36 degrees as a good starting point.
Steve
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.