Need some hep.

I just picked up a few carbs today, all Holleys except for this Demon.

I'm wondering if it's worth a snot, should it be rebuilt and is it usable? I was thinking this had something to do with Barry Grant? I have read that they had issues.

IF it is useable, how do I ID it, I don't find any numbers anywhere.


View attachment demon.jpg

View attachment demon1.jpg

View attachment demon2.jpg



Is it worth a rebuild? Or should I take it out and run over it with my big truck. :D