Early Barry Grant Alcohol car info needed

I have what appears to be an earl B/G Alcohol carb , not a Demon B/G.
The numbers that are scribed on it sre JM964553 & below it is J52644.
It is supposed to be a 750CFM Alcohol carb.
I'm a little lost on one of these.
It looks like a Holley, but has the B/G center section & bowels.
The only alcohol carbs that I have worked on have been the Holley HP series.
They seem to do things different than the B/G.

What I really need to know is if the specs for this carb, ie jets, power valves, squirter size.
It came with 82 jets in the front & 87 jets in the rear. I noticed that it also has a hole drilled above all the jets going into where the jet screws in. I guess to richen it up further.
The Holleys use jets in the 132 & larger range, without extra holes in the mettering blocks.

This carb came with 30CC accel pumps & #25 squirters, again, the Holley stuff comes with 50CC pumps & squirters in the 55 range.

Since B/G is out of buisness & I can't find any info on the internet, unless its for the demon series carb, I was hoping somebody has tuned on one of these.
Any info is appreciated.