From what I can determine, most race engine builders restrict oiling at some points in their engines.
It seems that it is a foregone conclusion that most engines pump too much oil into the valve covers.
The trick is going to be how much to restrict it.
I don't think any builders are going to divulge that information?
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.