Best power for the buck would be to go with a cleavland or windsor based motor. Parts are more plentiful for a windsor based motor. To install a 5.4 based mod motor such as the Trinity, if you cannot do the work yourself, bring cubic dollars! Voice of experience speaking!
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.