If you join POCA, you will be able to select the local chapter you are affiliated with. There are several east coast chapters, some more active than others. If you are looking for that sort of thing, I would encourage you to join. But as has been stated, there is no large DeTomaso event on the east coast. There used to be, but no longer.
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.