Holley stumble trouble

I'm not a guy with a lot experience in removing the well plugs and e-tubes.
All I can say is look at some of the things Mike (GNTKLLR) found and discusses in this thread.
New and improved 1850...?

One of them is a block where the e-holes were drilled in one air well and not the other. :realcrazy:
In post #6 he has a 11761 metering block with flat caps but no e-tubes...