I am looking at Ansen as well but for 350 Chevy I have in my El Camino. They do look nice. No first hand experience as of this time but I was referred to them from somebody putting them on a Cleveland.
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.