Carb guys I have a simple question (s)

I did some investigating online, really no help.
I read my vizard book again, no help & decided to just take my flashlight and track down the holes on the dominator then matched them up to mystery metering blocks they are burgundy colored 4 emulsion billet pieces. Any ways I found where the transition circuit goes (that was easy, duh.)
Now I have a plan in order to drill, tap & plug that circuit, still leaving it useable if I ever figure out the secret ( lots to learn before that happens)
But still planning to call Dom @ thumpercarbs.
To get his opinion (help).
Thanks guys for your time