Annular boosters on a Tunnel Ram

I'd say for one there are too many holes.
My version of the answer to your question about testing method is this.
The range of MAB's tested is too wide. Between .025 and .035"
The e-bleeds are way outside of the working range. 2 e-holes about .026 to .28 or Mark W says he's had good results with some applications with three, but smaller, like .020" dia IIRC.

The kill bleed can help the intiation of flow when it does start. It may slightly delay that initiation.

That's a big main jet but I didn't look at the application or even the carb.