you need a 3/8" NPT to -6 AN These folks: performancedynamics speedshop.com have good pricing, free shipping & are v helpful.
I've used a lot of AN fittings from them.
Originally Posted by crxnug
Im looking for a fitting from summit racing that goes on the mechanical fuel pump for a 1966 fastback that will accept Earls -6AN . any help would be appreciated