I have read that it becomes more important with increased horsepower on drag type cars. With the sometimes sloppy factory specs and blocks that have been line bore seems to be a valid concern for both the long term life of the trans and engine.
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.