Correct carb gasket for an Eddie LD340 and a new AVS 2 carb?

[340challconvert]

What is the Correct carb gasket for an Eddie LD340 and a new AVS 2 carb?
New carb came with an open gasket, vs 4 openings gasket on a stock square bore carb and manifold.AVS2 is a square bore carb like original AVS
The LD340 is a dual plane plenum with a small notch between the plenum divider. Is an open gasket correct for this application?
I was looking at a gasket like the one I posted below as more appropriate. Thoughts please!

[340challconvert]

PIC of the LD340 with notched, divided plenum

[MoparCarGuy]

Yes, an open gasket will work in your modified LD340 application. The perimeter seal is all that is needed.
As you likely already know, the modification of the plenum divider reduces the venturi signal to the AVS by diminishing the dual-plane's low RPM vacuum signal. A very good modification for mid-range and upper rpm power.

Your combination needs to take advantage of the mod though. Headers, camshaft upgrade, manual transmission or an automatic with a higher stall converter can benefit from the plenum divider being opened.

[340challconvert]

Yes, an open gasket will work in your modified LD340 application. The perimeter seal is all that is needed.
As you likely already know, the modification of the plenum divider reduces the venturi signal to the AVS by diminishing the dual-plane's low RPM vacuum signal. A very good modification for mid-range and upper rpm power.

Your combination needs to take advantage of the mod though. Headers, camshaft upgrade, manual transmission or an automatic with a higher stall converter can benefit from the plenum divider being opened.

Thank you
Phil