I got a Mallory pump - looks exactly like the original pump except that it's chromed.
I didn't really want a chromed one - but it was the only mechanical pump I could find.
The first one had pin hole in the casting a sprayed fuel all over the side of the block.
The replacement works and doesn't leak.
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.