Here is CompCams online Camquest program. You can fiddle with all kinds of parameters to determine what is right for you.
http://www.camquest.com/
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.