I had my local hose shop make up a hose with -4 AN fittings even though they advised that there was a mismatch in the seats, That was over 30 years ago and it is still working fine.
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.