It looks like the rear carb flange is welded on. It doesn't appear to be a modified new Edelbrock Air Gap dual quad for the 351W...
![[linked image]](../../../../../../www.jegs.com/images/photos/300/350/350-7585.jpg)
...and it also doesn't look like the dual quad that already fits Holleys that Price sells.
![[linked image]](../../../../../../www.pricemotorsport.com/assets/images/INT-403-4.jpg)
http://www.pricemotorsport.com/html/body_intake_manifolds.html
