Just passing this along from another site. The Quadrajet in the post is mine, the Holleys look great too.
http://www.yenko.net/ubbthreads/showflat.php/Cat/0/Number/264006/an/0/page/0#264006

http://www.vintagemusclecarparts.com/

I second this post. I just received my Holley 3839 back from Eric last week and it looks fantastic. Even my wife couldn't believe it was the same carb.

His price was very fair, and he line itemed every part on the invoice.

The next carb work I need, I won't go anywhere else. I can't wait for this weekend to put it on the El Camino, and fire her up !