Really need help here with carb adapter-please!

[purzell]

Guys, a while back I posted issues I was having with using the Mr. Gasket 1937 with my Holley 4412 carb. I returned that adapter to Jegs, after a lengthy conversation with a customer service guy who was an old time mechanic with knowledge of my motor (351e V6). This guy recommended the TransDapt adapter part number 2039 for Holley 2BBL-Rochester Manifold.

Note, the original carb on my truck when I got it was a Rochester 2-Jet. Well I now have this new adapter in my hand and the bolt pattern is all wrong.

The re-stocking fees are killing me guys. Can ANYONE help me out with which adapter is the correct adapter for my intake? I have attached a photo of my intake if that helps.

Again the truck is a 1966 GMC with the 351e V6.

Thanks in advance for any help.