Holley/Demon Carb stumble

It would be nice if somewhere in the specs for that main body they listed the Venturi diameter.

I took a Mighty Demon 850 in on trade towards something at one point.
The guy I got it from also took it in on trade for something.
He never tried to use it but said the guy he got it from couldn’t get it to work right.

Well, I took it all apart........ and it had some super cluster f@£k of a tune in it, so I just set it all up to the specs in the catalog.
Tried in on the dyno...... had to tweak the tune slightly, but it seemed to work fine.
I ended up using it for a dyno carb for the 650-750hp type builds, and I never had to mess with it again after that first tweak.
I ended up selling it after a few years........ I was pretty rich with carbs at the time, and had something else I could use for that type of build......... so it ended up with a new home.

With two normal Holley metering blocks, I think I’d be tempted to try the ootb Proform tune as a baseline with the new main body, and work from there.