1/24 or 1/25 Weber Carbs- What kit did these come from?

['70 Grande]

Can anyone help me identify which 1/24 or 1/25 kit this side-draft Weber carbs chrome piece came in?  It is molded all as one-piece... the first pic below shows the top-side; the second pic shows the underside. Thanks for the help.

https://photos.app.goo.gl/cuw6qCpaCdvKZKDu2

https://photos.app.goo.gl/7ncC13VvIEw7tUzW2

['70 Grande]

Underside view:

https://drive.google.com/file/d/0BzYij7c508oiR2ZDanFheHlXd0lwS2dSVTA4UVA4eW53Ymh3/view?usp=sharing

['70 Grande]

Top-side view

https://drive.google.com/file/d/0BzYij7c508oiMzFvUmtDa3E1enRMZ2ROT1ZnSThGSUFQaERn/view?usp=sharing

[Snake45]

For some reason I'm associating these with a weird manifold that hung them off a 6-71 (or perhaps another type of blower), but I can't quite remember which kit that was in....

[Exotics_Builder]

Possibly Revell Datsun 510 BRE

 

Edited July 17, 2017 by Exotics_Builder